Widen MythConfirmationDialog
Add highlight to themechooser list
basegridlist: move highlight in 1 pixel to give it some more definition.
Cleanup streamview window and add highlights.
mainmenu: loosen up the scroll arrows.
groupsList: Don't highligh unless it is active.
streamview: Show highlight for selectedinactive button
Revert "groupsList: Don't highligh unless it is active."

This reverts commit 501166af66d17189f9e237f2e55b6a28f1618065.
news: add buttonlist highlights