Move scroll-to-bottom arrow placement up slightly

// FREEBIE

res/layout/conversation_fragment.xml

@@ -27,7 +27,7 @@
             android:layout_height="wrap_content"
             android:layout_marginEnd="10dp"
             android:layout_marginRight="10dp"
-            android:layout_marginBottom="10dp"
+            android:layout_marginBottom="20dp"
             android:padding="5dp"
             android:layout_gravity="bottom|end"
             android:background="@drawable/circle_tintable"