Fix: screen top ui, screen bottom ui

src/game/login/login.js

@@ -15,12 +15,15 @@ class Login {
 		this.game.stage.backgroundColor = '#4d4d4d';
 		this.textStyle = { font: "bold 32px Arial", fill: "#fff", align: "right", boundsAlignH: "right", boundsAlignV: "middle" };
 
-		let backButton = new BackButton( () => {
+		// top ui
+		let screenTopUI = new ScreenTopUI();
+		screenTopUI.makeBackButton( () => {
 			sessionStorageManager.clear();
 			location.href = '../../web/main/index.html';
 		});
+		screenTopUI.makeFullScreenButton();
+
 
-		let fullscreenButton = new FullscreenButton(this.game);
 
 		let textX = this.game.world.centerX - 320;
 		if(sessionStorageManager.maestroID === null)