The main menu is currently sent down the wire as HTML but only shown with JS. Let's change this.
- Let's move the code for the main menu into a single mustache/hogan template.
- Special:MobileMenu should use this template to render the menu on server side
- Clicking the hamburger will render the MainMenu view, which will use this template.
This should reduce overall page HTML and reduce code duplication. Welcome to the future!