This lets us make it more consistent with the Compose screens for now. Maybe it'll return in the future.
This also includes making the AboutController a full Compose controller with a new abstracted TopAppBar composable.
(cherry picked from commit 80c7a453286f296ae4d5d3531c805e63db9ca424)
# Conflicts:
# app/src/main/java/eu/kanade/presentation/category/components/CategoryTopAppBar.kt
# app/src/main/java/eu/kanade/presentation/more/about/AboutScreen.kt
