- In usePlayer hook:
  - Add states to control volume:
    - playerVolume
    - playerMuted
  - Add changePlayerVolume function to handle volume change
  - Add to the return object:
    - playerVolume
    - changePlayerVolume
    - playerMuted
    - setPlayerMuted

- In App component:
  - Create a volume slider
  - Create a mute/unmute button
  - Additionally make formatting changes

- Volume change while playing
- Starting with pre-set volume
- Starting already muted by changing volume to zero
- Starting already muted by mute button
- Muting and unmuting by changing volume while playing
- Muting and unmuting using mute button while playing
- Changing volume while it's muted and playing
- Muting by changing volume to zero and unmuting while playing

- Separate the volume control into a new component