Patterned territory (#786)

## Description:
This is meant to give players more customization options.
Permission handling hasn’t really been implemented yet.
## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

## Please put your Discord username so you can be contacted if a bug or
regression is found:

aotumuri

src/server/Client.ts

@@ -14,9 +14,11 @@ export class Client {
     public readonly persistentID: string,
     public readonly claims: TokenPayload | null,
     public readonly roles: string[] | undefined,
+    public readonly flares: string[] | undefined,
     public readonly ip: string,
     public readonly username: string,
     public readonly ws: WebSocket,
     public readonly flag: string | undefined,
+    public readonly pattern: string | undefined,
   ) {}
 }