* ui: add real-time video recording functionality with ffmpeg support
* fix: record at consistent frame rate
* add spaces
* fix type
* refactor: RECORD_FRAMES variable and related logic
* fix: remove unnecessary texture check
* support missing output extension
* add wait for close with timeout
* fix: ensure RECORD_OUTPUT has the correct file extension
* flush on close and terminate if times out closing
* ffmpeg hide banner
* reduce ffmpeg spam
* refactor: streamline ffmpeg arguments for video encoding
* refactor: move size arg to variable and add yub420p conversion for native support
* use render_width and render_height for size
* fix: ensure even dimensions for video encoding when recording
* rm itertools
* simple
* cleanup
* docs
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Co-authored-by: Adeeb Shihadeh <adeebshihadeh@gmail.com>
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