Updated Navigation UI

So quite a few people didn't like having to move their mouse around the screen to find the spot to leave a room... And fair enough. It wasn't the best system...

So I fixed it... Just another additional little thing to help the game be smoother and more enjoyable. I hope you like it better.

Personally, I didn't want a bunch of icons on the screen, that's why I did it the original way. But this is fine. They only show up in rooms. To get INTO rooms, you still click the door.