Updated the service worker, to account for the new file names
Added header and footer template files to store the header and footer layouts
Updated about page header and footer to match templates
Added checks in JS files to prevent certain code from firing if the file is not loaded on the home page. Prevents errors from occurring on about page.
Lower menu for controls, replacing the action tray
CSS for lower menu buttons
Removed the action tray (RIP)
Fixed the bug in the favorite list where clicking on any element in the list would trigger the remove from favorite function
