Added a microphone tuner (requires recording permission) and an option to change the reference A4 frequency used by the tuner.

A global keyboard shortcut was introduced that toggles the play state (Enter key), as well as a tap button that can set the bpm based on the button presses intervals.

## Added - A timer that shows the time passed while the metronome was playing. ## Changed - Respect the accent color in the application.

# Fixed - Issue on startup of the application. - Issue where the volume would be initially not correct.

# Changed - Improve stability of the application.

Fixing some issues.

## Changed - Adjust the design of the play button.