MP3 Player App

i finally got the app working! started off by fixing the arrows from yesterday and also the progress bar. then added callbacks for the play/pause prev next so that it actually works with my code. also changed the play button from an svg-style icon to just rectangles (was getting a nasty build error due to the path feature) i might change the colours later, ill see based on the aesthetic of the controller :)

I started working on an mp3 player app. I initially started with the simple tutorial via the docs, then added custom font, icons, and controls. Still working on some of the icons (next/prev and progress bar) because it has to all be done by making rectangles.