Music could be started and controlled with no way to turn it off for
a server. Adds a music_settings table (mirrors the same one
velox-dashboard-api's dashboard toggle reads/writes), a /music toggle
command gated to Manage Server, and checks in /play, /queue, and
/volume so they refuse to run when a server has music turned off.
- Added new music commands: play, queue, and volume.
- Implemented music management using disgolink for Lavalink integration.
- Updated bot initialization to include Lavalink host and password.
- Enhanced interaction handling for music commands, requiring DJ role for usage.
- Introduced now playing message with interactive buttons for controlling playback.
- Updated dependencies in go.mod for disgolink and snowflake.