Improve Command System

[sarhatabaot]

Currently the command system we use is very messy. Adding a command requires us to add logic to a long switch method & also update tab completion methods. We should do 2 things:

• Move to a command framework ACF
• Move logic of every sub command to it's own class - for better readability.

I've previously worked with ACF so that's what I'll work on with the PR for this feature.

[FireML]

Maybe also fix the custom competition command while doing this? Here is the link to what I mean: https://discord.com/channels/831387950401978398/884501996546166845/1227336739295596564

[sarhatabaot]

Implemented via #317