Improve customer inconvenience

There was an opinion that the UI was complicated, so we simplified it.



1. The button for selecting adult scenes has been simplified.
2. Camera Set button has been simplified.
3. In the easy state, clicking on the UI moves the camera.



4. In the expert state, use the mouse to move the camera (press F1 to check the information)

- There are different demands between beginners and experts.
It's hard to balance either side