ShopKeepers Update (#437)
* ShopKeepers Update
* Completed register fix
* EventHandler fix
* Completed & initiation name switch
* File name change
* Switch and description changes, and @Warnings added. Tested on 2.22.3 (https://dev.bukkit.org/projects/shopkeepers/files/5569421)
* Minor changes
* fix
* minor fixes
* clarification
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commit: 345db88)
