Features:
- Just name/prefix changed
- Changed permissions name

Example:
joinmessages.commands.* to simplejoinevents.commands.*

- Changed command alias name (before: /jm | now: /sje)

Features:
- Added a firework to the join event
- Fixed bugs

Firework Color customization soon!

New plugin name, i'll change the plugin name to SimpleJoinEvents,
to follow the "Simple" trilogy lol, and the "JoinEvents" to add more events in the future.

Features:
- Added customizable player join/left broadcast
- Disabled default minecraft join/left message