update button sprite per jmartini with camera icon
reduce font size in tabs
updated tab sprite from jmartini
rename object
camera icon
refactoring icon css and moving info button
implement info button to show modal with keyboard shortcut legend
fix header text
fix bug with input elements while keyboard shortcuts enabled
implement metronome playback and controls
set max length on metronome input and change tempo range
reuse info modal
added ogg format for metronome tick sound so it will work in firefox
add license