Make collection database even more safe
Add osu!catch Difficulty Adjust setting to enable "Hard Rock offsets"
Add `IApplicableToBeatmapProcessor` mod interface
Remove local configuration of rider data sources
Fix multiplayer leave dialog not working on all exit operations
IApplicableToBeatmapProcessor
Extract `SeedSettingsControl` to `IHasSeed` interface
Add "placeholder" (pre-MVP) implementation of osu!catch editor
SeedSettingsControl
All interface members are implicitly public.