Further rework the button layout to be alike to other modern widgets.
This changeset transforms the play button into a FAB-ish thing,
makes spacing coherent between the uses of each layout, and adds
spacers to make the buttons layout in a more appealing way.
Completely rework app typography.
Today I found out that inter has a tool that allowed you to generate
line spacings for a particular font size. Several hours later, I
regenerated the entirety of Auxio's typography to use this new system.
Moreso, I also tried to eliminate some of the non-standard text styles
that I was using prior. That failed. Mostly there's two edge-cases
regarding title bolding and the playback view that I simply cannot
work through right now, since M3's typography system is horribly
restrictive.
Completely rework the excluded directory system into a new
"Music Folders" system.
This is implemented alongside a new "Include" mode. This mode
allows the user to restrict music indexing to a parsicular folder.
I've been reluctant to add this feature, as having two separate
options seemed bad. This resolves it by effectively packing whether
to include/exclude directories into a single option.
Resolves#154.
