feat: 添加游戏启动界面和着色器效果

- 新增启动界面背景和logo
- 实现顶部和底部阴影着色器
- 添加难度选择滑块和角色名输入框
- 优化多人游戏按钮交互
- 修复编译提示面板的动画效果
- 更新UI主题样式

scripts/Contents/Panels/CompilingTip.gd

@@ -4,10 +4,11 @@ extends FullscreenPanelBase
 func afterOpen(_args: Array = []):
 	if WorldManager.isRelease():
 		for key in ComponentManager.effects:
-			var effect = EffectController.create(ComponentManager.getEffect(key), Vector2.ZERO, self)
+			var effect = EffectController.create(ComponentManager.getEffect(key), Vector2.ZERO, self )
 			effect.modulate.a = 0.01
 			(effect.sounds.get_node("spawn") as AudioStreamPlayer2D).volume_db = - INF
 			effect.shot()
 		await TickTool.millseconds(3000)
 	await TickTool.frame()
 	UIState.setPanel("SelectInitialFeed")
+	StarterPanel.buildingShader = false