Summary

1. Added a line to .gitignore to ignore IDE configuration files generated by the Jetbrains CLion IDE.
2. Moved the check for mouse_capture to a position before XInput events are handled. In commit c695cb8d, the behavior of xinput2_proc was changed to call the function mouse_scale_x/mouse_scale_y from the previous behavior of modifying xinput-related variables. These calls were made before the mouse_capture check, modifying global mouse variables when the mouse input was not captured.
3. Added a check for mouse_capture before handling a QWheelEvent. This prevents an issue where mouse scrolls made while the mouse isn't captured cause the behavior of the mouse wheel being 'stuck' on certain configurations.

Checklist

• Closes Serial Mouse Pointer Movement #4693, Mouse shoots to the right #3873, potentially middle mouse button related issues in Linux mouse issues #4239
• I have discussed this with core contributors already
• This pull request requires changes to the ROM set
• I have opened a roms pull request - https://github.com/86Box/roms/pull/changeme/

References

Provide links to datasheets or other documentation that helped you implement this pull request.