In The Pocket Pro

- Features: - Now a track selection persists when editing or adding. - Metronome stops when navigating to import/edit forms from player, which helps with a lot of concurrency issues. - Bugfixes: - Fix defect with fetching BPM in edit forms. - Was not using the most recently updated title/artist when editing. - Fix metronome disabled color (made it gray). - Always enable stop, in case metronome is still playing the silent track after skipping from previous track. - Fix notes display in track player. - No longer needs to expand, since drawer handles that. - Fixed concurrency issues with writing click tracks. - Fixed several issues with selected track and binding to audio sources (metronome). - Tech Debt: - Rewrite concept of "added item". Instead of a null, it creates the item instance first. - This lets forms bind to the actual field values, and saving just performs agnostic insert/update into the DB. - Also remove all optional setlistTrack references when launching edit/import forms. - Set list track is now required for any related pages/forms launch, so optional params are removed from all constructors, argument type classes, etc.