remove player id from Schemas, fix archive bug (#907)

## Description:

Remove all references to playerID in the archive schema, since we
reference players by client id.
Also fixed the game not archiving bug, due to invalid reference.

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [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:

<DISCORD USERNAME>

src/server/Client.ts

@@ -1,16 +1,13 @@
 import WebSocket from "ws";
 import { TokenPayload } from "../core/ApiSchemas";
-import { PlayerID, Tick } from "../core/game/Game";
+import { Tick } from "../core/game/Game";
 import { ClientID } from "../core/Schemas";
-import { generateID } from "../core/Util";
 
 export class Client {
   public lastPing: number;
 
   public hashes: Map<Tick, number> = new Map();
 
-  public readonly playerID: PlayerID = generateID();
-
   constructor(
     public readonly clientID: ClientID,
     public readonly persistentID: string,