Request: Quick Keybinds

[cdrani]

1. Scrub to song position based on percentage For ex, num key 0‍⃣ -> start, 2‍⃣ -> 20%, 9‍⃣ -> 90%.
2. Increment/Decrement volume using arrow keys: ⬇ decrease, ⬆ increase
3. Quick seek binds: ⬅ seek back, ➡ seek forward