Multiple suggestions as config options

[ChanceSD]

Suggested by a user

I recommend adding:

1. ~~golden-apple-cooldown~~
2. ~~enchanted-golden-apple-cooldown~~
3. ~~ender-pearl-cooldown~~ Added
4. ~~remove-join-message: true~~ Doesnt make sense for PvPManager
5. ~~remove-leave-message: true~~ Doesnt make sense for PvPManager
6. ~~remove-death-message: true~~ Can be done using gamerules now
7. improve pushback a bit like premium does

[ChanceSD]

Updated with points done and denied, just missing the cooldown