Added move to inbox icon

app/src/main/res/drawable/baseline_move_to_inbox_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M19,3L4.99,3c-1.11,0 -1.98,0.9 -1.98,2L3,19c0,1.1 0.88,2 1.99,2L19,21c1.1,0 2,-0.9 2,-2L21,5c0,-1.1 -0.9,-2 -2,-2zM19,15h-4c0,1.66 -1.35,3 -3,3s-3,-1.34 -3,-3L4.99,15L4.99,5L19,5v10zM16,10h-2L14,7h-4v3L8,10l4,4 4,-4z"/>
+</vector>

app/src/main/res/layout/include_message_navigation.xml

@@ -69,7 +69,7 @@
         android:padding="6dp"
         android:scaleType="fitCenter"
         android:tooltipText="@string/title_folder_inbox"
-        app:srcCompat="@drawable/baseline_inbox_24"
+        app:srcCompat="@drawable/baseline_move_to_inbox_24"
         tools:ignore="MissingConstraints" />
 
     <ImageButton