Overhaul mouse input system and look-around camera

[adfriz]

• Implement smooth mouse look-around using System.Windows.Forms.Cursor.
• Fix camera spinning and choppiness by bypassing OpenTK event lag.
• Add dynamic sensitivity scaling based on zoom level (FOV).
• Add support for mouse scroll and extra buttons in input processing.
• Update Indonesian and English translations for new mouse controls.
• Add default control mappings for mouse input.

Note: there is a small bug, if we in look around mode (right click mouse) and look backward, anything not loaded like got culled and it need to be triggerd by something like moving the camera position a bit or use arrow key once.

@leezer3 i need your help about that bug.

[adfriz]

preview, i set scroll up/down as zoom in/out and we can do interesting stuff like dolly zoom.

*i need to compress this video because github upload limit

Screen.Recording.2026-04-26.1114382.mp4

[leezer3]

Hmm.

The issue with using the System.Windows.Forms.Cursor approach is going to be on platforms other than Windows- Without checking specifically, it's unlikely to work at all on Mac, and Linux may or may not work.

To immediately fix your bug, set the alignment direction, not the alignment directly.
Alternatively, you can call the UpdateViewingDistances method from the renderer.
By setting the aligment directly, you're bypassing the viewing distances update, and so the camera still thinks it's got the same backwards viewing distance as when it's pointing forwards.

[adfriz]

ok its done.

@leezer3 please check.