Fix various typos

Found via codespell.

src/Gui/PreferencePages/DlgSettingsUI.ui

@@ -432,7 +432,7 @@
       <item row="3" column="0">
        <widget class="Gui::PrefCheckBox" name="overlayAutoHideCheckBox">
         <property name="toolTip">
-         <string>Automatically hide overlayed dock panels when in non 3D view (like TechDraw or Spreadsheet).</string>
+         <string>Automatically hide overlaid dock panels when in non 3D view (like TechDraw or Spreadsheet).</string>
         </property>
         <property name="text">
          <string>Auto hide in non 3D view</string>

src/Mod/AddonManager/package_list.py

@@ -306,7 +306,7 @@ def update_content(self, index):
             self.widget = self.compact
             self._setup_compact_view(repo)
         elif self.displayStyle == AddonManagerDisplayStyle.COMPOSITE:
-            self.widget = self.compact  # For now re-use the compact list
+            self.widget = self.compact  # For now reuse the compact list
             self._setup_composite_view(repo)
         self.widget.adjustSize()
 

src/Mod/CAM/Path/Op/Drilling.py

@@ -253,7 +253,7 @@ def circularHoleExecute(self, obj, holes):
         holes = PathUtils.sort_locations(holes, ["x", "y"])
 
         # This section is technical debt. The computation of the
-        # target shapes should be factored out for re-use.
+        # target shapes should be factored out for reuse.
         # This will likely mean refactoring upstream CircularHoleBase to pass
         # spotshapes instead of holes.
 

src/Mod/CAM/Path/Tool/Gui/BitEdit.py

@@ -119,7 +119,7 @@ def labelText(name):
         usedRows = 0
         for nr, name in enumerate(tool.Proxy.toolShapeProperties(tool)):
             if nr < len(self.widgets):
-                Path.Log.debug("re-use row: {} [{}]".format(nr, name))
+                Path.Log.debug("reuse row: {} [{}]".format(nr, name))
                 label, qsb, editor = self.widgets[nr]
                 label.setText(labelText(name))
                 editor.attachTo(tool, name)

src/Mod/CAM/Tests/TestPathPost.py

@@ -475,7 +475,7 @@ def test030(self):
 #    #
 #    PATHTESTS_LOCATION = "Mod/CAM/Tests"
 #    #
-#    # The following code tries to re-use an open FreeCAD document
+#    # The following code tries to reuse an open FreeCAD document
 #    # as much as possible.  It compares the current document with
 #    # the document for the next test.  If the names are different
 #    # then the current document is closed and the new document is

src/Mod/Measure/Gui/ViewProviderMeasureDistance.cpp

@@ -254,7 +254,7 @@ SbMatrix ViewProviderMeasureDistance::getMatrix()
     Base::Vector3d localXAxis = (vec2 - vec1).Normalize();
     Base::Vector3d localYAxis = getTextDirection(localXAxis, tolerance).Normalize();
 
-    // X and Y axis have to be 90° to eachother
+    // X and Y axis have to be 90° to each other
     assert(fabs(localYAxis.Dot(localXAxis)) < tolerance);
     Base::Vector3d localZAxis = localYAxis.Cross(localXAxis).Normalize();
 

src/Mod/MeshPart/App/MeshFlatteningLscmRelax.cpp

@@ -511,7 +511,7 @@ void LscmRelax::set_q_l_g()
         Vector3 r31 = r3 - r1;
         double r21_norm = r21.norm();
         r21.normalize();
-        // if triangle is fliped this gives wrong results?
+        // if triangle is flipped this gives wrong results?
         this->q_l_g.row(i) << r21_norm, r31.dot(r21), r31.cross(r21).norm();
     }
 }
@@ -531,7 +531,7 @@ void LscmRelax::set_q_l_m()
         Vector2 r31 = r3 - r1;
         double r21_norm = r21.norm();
         r21.normalize();
-        // if triangle is fliped this gives wrong results!
+        // if triangle is flipped this gives wrong results!
         this->q_l_m.row(i) << r21_norm, r31.dot(r21), -(r31.x() * r21.y() - r31.y() * r21.x());
     }
 }

src/Mod/Part/App/Attacher.cpp

@@ -1980,7 +1980,7 @@ TYPESYSTEM_SOURCE(Attacher::AttachEnginePlane, Attacher::AttachEngine)
 
 AttachEnginePlane::AttachEnginePlane()
 {
-    //re-used 3d modes: all of Attacher3d
+    //reused 3d modes: all of Attacher3d
     AttachEngine3D attacher3D;
     this->modeRefTypes = attacher3D.modeRefTypes;
     this->EnableAllSupportedModes();
@@ -2016,7 +2016,7 @@ AttachEngineLine::AttachEngineLine()
     modeRefTypes.resize(mmDummy_NumberOfModes);
     refTypeString s;
 
-    //re-used 3d modes
+    //reused 3d modes
     AttachEngine3D attacher3D;
     modeRefTypes[mm1AxisX] = attacher3D.modeRefTypes[mmObjectYZ];
     modeRefTypes[mm1AxisY] = attacher3D.modeRefTypes[mmObjectXZ];
@@ -2413,7 +2413,7 @@ AttachEnginePoint::AttachEnginePoint()
     modeRefTypes.resize(mmDummy_NumberOfModes);
     refTypeString s;
 
-    //re-used 3d modes
+    //reused 3d modes
     AttachEngine3D attacher3D;
     modeRefTypes[mm0Origin] = attacher3D.modeRefTypes[mmObjectXY];
     modeRefTypes[mm0CenterOfCurvature] = attacher3D.modeRefTypes[mmRevolutionSection];

src/Mod/Part/App/FeatureExtrusion.h

@@ -75,7 +75,7 @@ class PartExport Extrusion : public Part::Feature
 
     /**
      * @brief fetchAxisLink: read AxisLink to obtain the direction and
-     * length. Note: this routine is re-used in Extrude dialog, hence it
+     * length. Note: this routine is reused in Extrude dialog, hence it
      * is static.
      * @param axisLink (input): the link
      * @param basepoint (output): starting point of edge. Not used by extrude as of now.

src/Mod/Part/App/FeatureRevolution.h

@@ -64,7 +64,7 @@ class PartExport Revolution : public Part::Feature
 
     /**
      * @brief fetchAxisLink: read AxisLink to obtain the axis parameters and
-     * angle span. Note: this routine is re-used in Revolve dialog, hence it
+     * angle span. Note: this routine is reused in Revolve dialog, hence it
      * is static.
      * @param axisLink (input): the link
      * @param center (output): base point of axis

src/Mod/Part/BOPTools/GeneralFuseResult.py

@@ -270,7 +270,7 @@ def _splitInCompound(self, compound, existing_pieces):
         """Splits aggregates inside compound. Returns None if nothing is split, otherwise
         returns compound.
         existing_pieces is a dict. Key is deep hash. Value is tuple (int, shape). It is
-        used to search for if this split piece was already generated, and re-use the old
+        used to search for if this split piece was already generated, and reuse the old
         one."""
 
         changed = False

src/Mod/Start/README.md

@@ -8,7 +8,7 @@ to things like FreeCAD's Recent Files list. This switch will happen sometime aft
 on Ubuntu 20.04 LTS, which still uses Qt 5.12. The cMake integration of QML and C++ together in a single project is
 greatly improved in Qt 5.15 and later.
 
-In the meantime the workbench is written in C++ so that the models can be re-used later, and only the UI itself will
+In the meantime the workbench is written in C++ so that the models can be reused later, and only the UI itself will
 have to change.
 
 ### Structure

src/Mod/TechDraw/App/CosmeticExtension.cpp

@@ -427,7 +427,7 @@ void CosmeticExtension::removeCosmeticEdge(const std::string& delTag)
 /// remove the cosmetic edges with the given tags from the list property
 void CosmeticExtension::removeCosmeticEdge(const std::vector<std::string>& delTags)
 {
-    // Base::Console().Message("DVP::removeCE(%d tages)\n", delTags.size());
+    // Base::Console().Message("DVP::removeCE(%d tags)\n", delTags.size());
     std::vector<CosmeticEdge*> cEdges = CosmeticEdges.getValues();
     for (auto& t: delTags) {
         removeCosmeticEdge(t);

src/Mod/TechDraw/App/DrawView.cpp

@@ -653,10 +653,10 @@ void DrawView::setScaleAttribute()
     }
 }
 
-//! due to changes made for the "intelligent" view creation tool, testing for a view being an
+//! Due to changes made for the "intelligent" view creation tool, testing for a view being an
 //! instance of DrawProjGroupItem is no longer reliable, as views not in a group are sometimes
-//! created as DrawProjGroupItem without belonging to a group.  We now need to test for the existance
-//! of the parent DrawProjGroup
+//! created as DrawProjGroupItem without belonging to a group.  We now need to test for the
+//! existence of the parent DrawProjGroup
 bool DrawView::isProjGroupItem(DrawViewPart* item)
 {
     auto dpgi = dynamic_cast<DrawProjGroupItem*>(item);

src/Mod/TechDraw/Gui/QGIViewDimension.cpp

@@ -362,10 +362,10 @@ void QGIDatumLabel::updateFrameRect() {
     int paddingRight = fontSize * 0.3;
     int paddingBottom = fontSize * 0.125;
     // Why top and bottom padding different?
-    // Because the m_dimText bouding box isn't relative to X height :(
+    // Because the m_dimText bounding box isn't relative to X height :(
     // And we want padding to be relative to X height
     // TODO: make QGCustomLabel::boundingBoxXHeight
-    m_frame->setRect(m_textItems->childrenBoundingRect().adjusted(-paddingLeft, -paddingTop, paddingRight, paddingBottom)); // Update bouding rect
+    m_frame->setRect(m_textItems->childrenBoundingRect().adjusted(-paddingLeft, -paddingTop, paddingRight, paddingBottom)); // Update bounding rect
 }
 
 void QGIDatumLabel::setLineWidth(double lineWidth)