Fix some problems with the Pre-12 widget responsiveness backport, most
notably the wrong layout being chosen on more dense launcher grids.
Also change the default widget size from 2x2 to 3x2 so that it's more
readable.
Refactor styles again, this time trying to seperate the more
layout-specific attributes so that layouts become more re-usable.
This also updates the naming conventions of styles.
Add the first widget implementation, the minimal widget. This took a
good 2 days of hacking and frustration to get the first prototype
working. And even then, its currently scoped to android 12 until I'm
able to port them. The implementation is still quite rough, but should
become manageable over time. More widgets will come.
