Zen Speed Controller geliştiren: Kalash Maheshwari

Universal video speed and seek controller that keeps playback rate locked against website reset handlers (such as YouTube seeking). Includes an on-screen HUD badge.

Shortcuts:
- S: Decrease speed (-0.1x)
- E: Increase speed (+0.1x)
- R: Reset speed (1.0x)
- Q: 2.0x speed
- W: 1.5x speed
- Z: Seek backward (-1s)
- X: Seek forward (+1s)