Switch to side-by-side view

--- a/src/qtgui/viewaction.ui
+++ b/src/qtgui/viewaction.ui
@@ -112,7 +112,6 @@
   </layout>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
- <pixmapfunction>qPixmapFromMimeSource</pixmapfunction>
  <resources/>
  <connections/>
 </ui>