Adds a download button in audio frames

Adds a button to the doc editor toolbar which toggles lights ON (black text on a white background) and OFF (white text on a black background). Mixing this with the fullscreen mode results in a more comfortable writing experience for your eyes.

Restores the font and color usage of the discord app to its former glory.

Adds direct .mp3 links to tracks which allow for preview downloads, so you don't need to log-in an stuff.