Fix popup menu with multiple node selections

I'm the Game Developer

In the game, you are a game programmer writing game code as assigned by your company. But don't worry, you can build a game just by dragging and dropping nodes and connecting them! With this game you will experience the process of game development and improve your logical thinking.

[b]Fix:[/b] [list] [*] Misplaced popup menus at different resolutions; [*] Multi-select nodes appearing uncontrollable at low resolutions; [/list]