androidApp: SessionScreen: Don't show blank session desc

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

androidApp/src/main/java/app/opass/ccip/android/ui/screens/session/SessionScreen.kt

@@ -100,7 +100,7 @@ private fun LoadSession(session: Session, dateTime: String, modifier: Modifier)
         SessionInfoItems(session.type, session.room, dateTime, session.speakers)
 
         // Description
-        SessionDescItem(session.description)
+        if (session.description.isNotBlank()) SessionDescItem(session.description)
     }
 }
 

androidApp/src/main/res/drawable/ic_qr_code.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ SPDX-FileCopyrightText: Material Design Authors / Google LLC
+  ~ SPDX-License-Identifier: Apache-2.0
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M120,440L120,120L440,120L440,440L120,440ZM200,360L360,360L360,200L200,200L200,360ZM120,840L120,520L440,520L440,840L120,840ZM200,760L360,760L360,600L200,600L200,760ZM520,440L520,120L840,120L840,440L520,440ZM600,360L760,360L760,200L600,200L600,360ZM760,840L760,760L840,760L840,840L760,840ZM520,600L520,520L600,520L600,600L520,600ZM600,680L600,600L680,600L680,680L600,680ZM520,760L520,680L600,680L600,760L520,760ZM600,840L600,760L680,760L680,840L600,840ZM680,760L680,680L760,680L760,760L680,760ZM680,600L680,520L760,520L760,600L680,600ZM760,680L760,600L840,600L840,680L760,680Z"/>
+</vector>