add menu icon
add snap.js script
adjust CSS to styleguide, remove left padding, prevent user-selection
add app sidebar toggle and swipe on mobile
close sidebar when switching navigation entry, except on add or change settings
fix position of sidebar toggle, fix Files controls position problems
prevent horizontal scrollbar
remove prevention of scrollbar, breaks some pages
slightly widen sidebar to 250px, works better with apps and on mobile
Disable snapper on bigger screens and on public/login page
prevent scrollbar when sidebar is open
Added debounce on resize
Fixed Snap mock

Also fixed JSHint errors
Fixed viewer mode for sidebar swipe
Merge pull request #8159 from owncloud/mobile-sidebar-swipe

Mobile sidebar swipe