Fix scene switching

src/frontend/scenes/base.js

@@ -18,7 +18,9 @@ import Phaser from 'phaser';
 class BaseScene extends Phaser.Scene {
   constructor() {
     super();
-    Phaser.Scene.call(this, {'key': this.constructor.name});
+    if (typeof this.key !== 'undefined') {
+      Phaser.Scene.call(this, {'key': this.key});
+    }
   }
 
   get width() {

src/frontend/scenes/login.js

@@ -28,4 +28,6 @@ class LoginScene extends MenuScene {
   }
 }
 
+LoginScene.prototype.key = 'login';
+
 export default LoginScene;

src/frontend/scenes/splash.js

@@ -39,10 +39,12 @@ class SplashScene extends MenuScene {
       delay: 5000,
       loop: false,
       callback: () => {
-        this.scene.start('LoginScene');
+        this.scene.start('login');
       }
     });
   }
 }
 
+SplashScene.prototype.key = 'splash';
+
 export default SplashScene;