Fix client reconnection after page refresh (#3117)

## Description:

- Removed all code related to generating a client ID on the client. The
server now assigns the client ID and sends it to the client in lobby
messages.

## 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

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

w.o.n

src/server/GameManager.ts

@@ -8,7 +8,7 @@ import {
   GameMode,
   GameType,
 } from "../core/game/Game";
-import { ClientRejoinMessage, GameConfig, GameID } from "../core/Schemas";
+import { GameConfig, GameID } from "../core/Schemas";
 import { Client } from "./Client";
 import { GamePhase, GameServer } from "./GameServer";
 
@@ -32,32 +32,30 @@ export class GameManager {
     );
   }
 
-  joinClient(client: Client, gameID: GameID): boolean {
+  joinClient(
+    client: Client,
+    gameID: GameID,
+  ): "joined" | "kicked" | "rejected" | "not_found" {
     const game = this.games.get(gameID);
-    if (game) {
-      game.joinClient(client);
-      return true;
-    }
-    return false;
+    if (!game) return "not_found";
+    return game.joinClient(client);
   }
 
   rejoinClient(
     ws: WebSocket,
     persistentID: string,
-    msg: ClientRejoinMessage,
+    gameID: GameID,
+    lastTurn: number = 0,
   ): boolean {
-    const game = this.games.get(msg.gameID);
-    if (game) {
-      game.rejoinClient(ws, persistentID, msg);
-      return true;
-    }
-    return false;
+    const game = this.games.get(gameID);
+    if (!game) return false;
+    return game.rejoinClient(ws, persistentID, lastTurn);
   }
 
   createGame(
     id: GameID,
     gameConfig: GameConfig | undefined,
-    creatorClientID?: string,
+    creatorPersistentID?: string,
     startsAt?: number,
   ) {
     const game = new GameServer(
@@ -83,7 +81,7 @@ export class GameManager {
         disabledUnits: [],
         ...gameConfig,
       },
-      creatorClientID,
+      creatorPersistentID,
       startsAt,
     );
     this.games.set(id, game);