Config.yml restructuring

In config.yml, you can set whether players can break blocks in your lobby or not.

In this update, you can set the value in config.yml to allow or disallow PvP.

Additionally, logic was implemented so that effects and all different settings only work in the lobby world, to prevent them from affecting regular game worlds.

In this update, you can enable or disable double jump and set custom join and leave messages.

Updated incorrect permission simplelobby.admin

on join gamemode
on join effect

reload command /slreload
- need "sl.admin" permission

In this update, launchpad was added. You can change the blocks and power in config.yml.