show game map name in public lobby

src/server/GameServer.ts

@@ -47,7 +47,7 @@ export class GameServer {
     public readonly createdAt: number,
     public readonly isPublic: boolean,
     private config: ServerConfig,
-    private gameConfig: GameConfig,
+    public gameConfig: GameConfig,
   ) {}
 
   public updateGameConfig(gameConfig: GameConfig): void {

src/server/Server.ts

@@ -195,6 +195,7 @@ function updateLobbies() {
         id: g.id,
         msUntilStart: g.startTime() - Date.now(),
         numClients: g.numClients(),
+        gameConfig: g.gameConfig,
       }))
       .sort((a, b) => a.msUntilStart - b.msUntilStart),
   });