Update (version 28.3)

- Added VR head model to spectator mode
- Added ConVars vr_head_rendermodel_name, vr_head_rendermodel_scale, vr_head_rendermodel_brightness
- Added option to draw 300s (bottom of Options, last one)
- Made slider parsing & curve generation more robust against abuse, long loading times are not fixed though (Aspire...)
- Fixed experimental mod "Minimize" not working with CS Override as expected
- Fixed seeking/scrubbing not working properly while early waiting (green progressbar)