Cleanup client

[PancakeTAS]

I have the java code equivalent of OCD 😂

Here's the list of syntax changes I did:

• Put @Getter at class declaration instead of every single field
• Change getInstance() to just instance
• Remove the spooky german words that chatgpt snuck into the GDRP
• Initialize fields at declaration instead of initialization

[PancakeTAS]

(this is completely untested btw)

[PancakeTAS]

one round of testing later... no issues, ready to merge