Remove trailing spaces from Android files

Android Studio wants to correct these automatically when editing files.

Source/Android/app/src/main/res/values/strings.xml

@@ -230,7 +230,7 @@
     <string name="emulation_control_scale">Adjust Scale</string>
     <string name="emulation_choose_controller">Choose Controller</string>
     <string name="emulation_controller_changed">You may have to reload the game after changing extensions.</string>
-    
+
     <!-- GC Adapter Menu-->
     <string name="gc_adapter_rumble">Enable Vibration</string>
     <string name="gc_adapter_rumble_description">Enable the vibration function for this GameCube controller.</string>