Fix a plethora of style issues that lead to a worse touch experience.
I tried to optimize these solutions so that they didn't reduce the layout
density too much. More updates may have to be made in the future.
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.
Update layouts to not assign a primary color through the tools namespace anymore, also bring back the light theme, which apparently disappeared at some point.
Add navigiation to LibraryFragment. This navigation is nested so that one can still move through the ViewPager, which will certainly have no problems later on. /s
