Fixed auth and other bugs

This update fixes random crash after merging playlist (length > 100)
- This is an optional update, Replace the file only if you come across the crash

Pushed in multiple fixes!
- Player crashing upon using buttons multiple times
- Fixed playlist button not working after updating panel
- Fixed player upon disconnecting

Added licensing, Please do not ask why

This update fixes a minor issues related to player crashing

Added DJ Options in config

Added 2 new commands `forcejoin`and `reset`
- ForceJoin: Ask player to join the voice channel you are in
- Reset: Destroy the player, fixes most of the issues

Renamed options commands
- Old: `music`, New: `coremusic`