Switch to side-by-side view

--- a/src/desktop/recoll-searchgui.desktop
+++ b/src/desktop/recoll-searchgui.desktop
@@ -4,7 +4,7 @@
 Encoding=UTF-8
 Exec=recoll
 GenericName=Local Text Search
-Icon=recoll-searchgui
+Icon=recoll
 Name=Recoll
 Terminal=false
 Type=Application