Re-add 2x2 widgets. They were originally removed due to strange layouts
in landscape mode, but that has now been fixed with a new "tiny" layout
meant for that specific edge case. Also rename the widget forms to more
sensible names and make the small (previously minimal) widget be
text-only again.
Prevent issues with malformed widget forms on certain devices by
increasing the minimum widget height to 152dp, which is the height
that the minimal widget should take up.
Add two new widget forms. The compact widget form shows the cover art
[this time with a proper aspect ratio] but no controls. The mini form
only shows the metadata. This seems to work well enough and provides
more choices with how one wants to decorate their homescreen with
Auxio's widgets.
