Implement Tab Completer

[IanTapply22]

Description

Implement the tab completer and register it along with fixing some bad logger serialized string handling

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

It was tested in a server running version 1.20.4 PaperMC

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation, if any
• My changes generate no new warnings
• I have performed tests that prove my fix is effective or that my feature works, if necessary
• New and existing unit tests pass locally with my changes