Set up home button.
Set up light theme with dark action bar.
Set up dark theme for settings.
Adjust card position.
Add filename to tag form.
Color the action bar for older version.
Merge branch 'res/ui' into feat/tagModification

Conflicts:
	app/src/main/AndroidManifest.xml
	app/src/main/java/binauld/pierre/musictag/activities/TagFormActivity.java
Merge fixing.