Adds a microphone icon to the right-controls for easier accessibility to a songs lyrics. It opens the fullscreenplayer and switches to the lyrics tab. This brings Feishin more in line with applications such as Spotify and Deezer that has a dedicated Lyric button in the player bar for easy access to a songs lyrics.

Adds:

• Microphone icon to right controls
• Switches automatically to lyrics tab in fullscreenplayer
• Changes button color to 'primary' when lyrics are active

Missing:

• Other locals than 'en.json' (I assume that's the default)
• Possibly a settings state saving, unsure how Feishin handles that (or if its necessary)

Preview: (File exceeded githubs 10mb limit, uploaded to streamable)
https://streamable.com/wcw2j9

Notes:
I have not tried building this, only local testing in dev.
I am not a react dev, so if you don't feel this is acceptable that's fine, I tried to keep the same structure as other places in the code. I do feel that a feature like this would be much appreciated :)