[FEATURE] Add an option to disable keyboard shortcuts

[YilingQiao]

Description

Add an ViewerOptions option to disable keyboard shortcuts to avoid potential keyboard conflict.

Try setting disable_keyboard_shortcuts=True
in

    scene = gs.Scene(
        viewer_options=gs.options.ViewerOptions(
            camera_pos=(3.5, 0.0, 2.5),
            camera_lookat=(0.0, 0.0, 0.5),
            camera_fov=40,
            disable_keyboard_shortcuts=True,
        ),
        rigid_options=gs.options.RigidOptions(
            # constraint_solver=gs.constraint_solver.Newton,
        ),
        show_viewer=args.vis,
    )

disable_shortcut.mp4

Related Issue

Resolves Genesis-Embodied-AI/Genesis#

Motivation and Context

How Has This Been / Can This Be Tested?

Screenshots (if appropriate):

Checklist:

• I read the CONTRIBUTING document.
• I followed the Submitting Code Changes section of CONTRIBUTING document.
• I tagged the title correctly (including BUG FIX/FEATURE/MISC/BREAKING)
• I updated the documentation accordingly or no change is needed.
• I tested my changes and added instructions on how to test it for reviewers.

• I have added tests to cover my changes.
• All new and existing tests passed.

[duburcqa]

Could you combine this with completely disabling text overlay? It significantly slows down rendering and it is important for real time applications.