Messaging: Use xml drawables

Replace the pngs with xml drawables

Change-Id: I71be32c36194d3b34b54287a09789f73087600ef

res/drawable/ic_image_light.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="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFF"
+        android:pathData="M20,5A2,2 0 0,1 22,7V17A2,2 0 0,1 20,19H4C2.89,19 2,18.1 2,17V7C2,5.89 2.89,5 4,5H20M5,16H19L14.5,10L11,14.5L8.5,11.5L5,16Z" />
+</vector>