Resolve githubnext#21 githubnext#37 githubnext#169

- githubnext#21 githubnext#37 "Hanging Font": Miss configure `typo` and `hhea` value. Adjust this value will "centering" glyphs across the vertical bounding box.

- githubnext#169  Probably same as above, tweaking `typo` and `hhea` does resolve the `line-height` or `leading` default to `1.2` or `120%` from the upm value.

UPM = 2000
(typo/hhea)Ascenders = 1930
(typo/hhea)Descenders = -470
(typo/hhea)LineGap = 0

Total:
ascender + abs(descenders) + linegap = 2400

Note that "Gcommaaccent" may be truncated in environments that have `overflow: hidden`

Please see these documentation:
- https://googlefonts.github.io/gf-guide/metrics.html#6-winascent-and-windescent-values-must-be-the-same-as-the-familys-tallestdeepest-ymin-and-ymax-bounding-box-values
- https://googlefonts.github.io/gf-guide/metrics.html#11-the-sum-of-the-fonts-vertical-metric-values-absolute-should-be-20-30-greater-than-the-fonts-upm

sources/Monaspace Argon Var.glyphs

@@ -1260,27 +1260,27 @@ axesValues = (
 customParameters = (
 {
 name = hheaAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = hheaDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = typoDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoLineGap;
-value = 400;
+value = 0;
 },
 {
 name = hheaLineGap;
-value = 400;
+value = 0;
 },
 {
 name = winAscent;
@@ -1331,27 +1331,27 @@ axesValues = (
 customParameters = (
 {
 name = hheaAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = hheaDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = typoDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoLineGap;
-value = 400;
+value = 0;
 },
 {
 name = hheaLineGap;
-value = 400;
+value = 0;
 },
 {
 name = winAscent;
@@ -1401,27 +1401,27 @@ axesValues = (
 customParameters = (
 {
 name = hheaAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = hheaDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = typoDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoLineGap;
-value = 400;
+value = 0;
 },
 {
 name = hheaLineGap;
-value = 400;
+value = 0;
 },
 {
 name = winAscent;
@@ -1471,27 +1471,27 @@ axesValues = (
 customParameters = (
 {
 name = hheaAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = hheaDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = typoDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoLineGap;
-value = 400;
+value = 0;
 },
 {
 name = hheaLineGap;
-value = 400;
+value = 0;
 },
 {
 name = winAscent;
@@ -1502,6 +1502,14 @@ name = winDescent;
 value = 786;
 }
 );
+guides = (
+{
+pos = (83,1930);
+},
+{
+pos = (19,-470);
+}
+);
 id = "05608152-0947-468D-8C2A-07D081228424";
 metricValues = (
 {
@@ -1541,27 +1549,27 @@ axesValues = (
 customParameters = (
 {
 name = hheaAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = hheaDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = typoDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoLineGap;
-value = 400;
+value = 0;
 },
 {
 name = hheaLineGap;
-value = 400;
+value = 0;
 },
 {
 name = winAscent;
@@ -1613,27 +1621,27 @@ axesValues = (
 customParameters = (
 {
 name = hheaAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = hheaDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = typoDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoLineGap;
-value = 400;
+value = 0;
 },
 {
 name = hheaLineGap;
-value = 400;
+value = 0;
 },
 {
 name = winAscent;
@@ -1684,27 +1692,27 @@ axesValues = (
 customParameters = (
 {
 name = hheaAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = hheaDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = typoDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoLineGap;
-value = 400;
+value = 0;
 },
 {
 name = hheaLineGap;
-value = 400;
+value = 0;
 },
 {
 name = winAscent;
@@ -1755,27 +1763,27 @@ axesValues = (
 customParameters = (
 {
 name = hheaAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = hheaDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoAscender;
-value = 1565;
+value = 1930;
 },
 {
 name = typoDescender;
-value = -435;
+value = -470;
 },
 {
 name = typoLineGap;
-value = 400;
+value = 0;
 },
 {
 name = hheaLineGap;
-value = 400;
+value = 0;
 },
 {
 name = winAscent;