macosx: Unify the video library view into one collection view with sections
This might be a slightly controversial change, but at the moment the video library view is not very nice to use due to the "Recents" scrollview permanently taking up half of the library window height:
Screen_Recording_2022-07-28_at_00.39.10
This PR removes this first collection view entirely and integrates it into the main video library collection view as a section instead.
Screen_Recording_2022-07-28_at_00.25.08
Signed-off-by: Claudio Cambra claudio.cambra@gmail.com