Small patch with new additions

• Fixed Schedules not unregistering on Folia Servers

• Fixed Plugin breaking if PlaceholderApi is not installed

• Fixed /oj reload command on Folia servers

• Added Bstats opt-out option in the configuration file

• Fixed a few weird errors that only occurred on Folia servers

• Fixed the no hit cooldown example script causing errors

• Added 2 new example scripts: hitstand script & Knockback-stick script to the documentation

• Fixed Bstats silently failing to load on Folia servers