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/GameServer.ts

@@ -300,7 +300,6 @@ export class GameServer {
       gameID: this.id,
       config: this.gameConfig,
       players: this.activeClients.map((c) => ({
-        playerID: c.playerID,
         username: c.username,
         clientID: c.clientID,
         flag: c.flag,
@@ -547,7 +546,6 @@ export class GameServer {
         this.log.warn(`Unable to find stats for clientID ${client.clientID}`);
       }
       return {
-        playerID: client.playerID,
         clientID: client.clientID,
         username: client.username,
         persistentID: client.persistentID,