Fixed TabIndex on AppearanceSettingsPage and layout to match all locales...

... and enlarged Apply button in FormSettings and buttons in FormResetChanges

AppearanceSettingsPage should now display all locales correctly and tab index fixed
German translation and others now fit buttons in FormSettings and FormResetChanges

Change-Id: If023fad174ecbe29777e8f0a0cff0802450a0ceb