Revert "reduce lobby duration from 30s => 60s to reduce waiting for lobbies that don't fill up"

This reverts commit 4d1911ae1b.

src/core/configuration/DefaultConfig.ts

@@ -171,9 +171,8 @@ export abstract class DefaultServerConfig implements ServerConfig {
   turnIntervalMs(): number {
     return 100;
   }
-
   gameCreationRate(): number {
-    return 30 * 1000;
+    return 60 * 1000;
   }
 
   lobbyMaxPlayers(