Settings: add App Sidebar (2/2)

Conflicts:
	res/values/slim_arrays.xml
	res/values/slim_strings.xml
	res/xml/customization_settings.xml

Change-Id: Ia5a6771d70ff72f607d4829a18a18700ce17dc57

Conflicts:

	res/layout/seek_bar_preference.xml
	res/values-es/slim_strings.xml
	res/values/slim_strings.xml
	res/xml/slim_interface_settings.xml