Make avatars larger in conversations.

res/layout/conversation_title_view.xml

@@ -12,12 +12,10 @@
     <org.thoughtcrime.securesms.components.AvatarImageView
         android:id="@+id/contact_photo_image"
         android:layout_width="36dp"
-        android:layout_height="48dp"
+        android:layout_height="36dp"
         android:layout_alignParentStart="true"
         android:layout_centerVertical="true"
-        android:paddingEnd="8dp"
-        android:paddingTop="10dp"
-        android:paddingBottom="10dp"
+        android:layout_marginEnd="10dp"
         android:clickable="true"
         android:contentDescription="@string/conversation_list_item_view__contact_photo_image"
         android:cropToPadding="true"