[Mobile] Right Pane sets

Right pane sets the size of itself,
causing the left pane to re-adjust
to fit the screen based on it. Also
transitions work on the slide and the
fade in.

platform/commonUI/general/res/sass/mobile/_mixins.scss

@@ -89,6 +89,6 @@
 }
 
 @mixin slMenuTransitions {
-    @include transition-duration(.2s);
+    @include transition-duration(.35s);
     transition-timing-function: ease;
 }