Navbar

See merge request !3

Sidebar

See merge request !2

 - Added sidebar styles
- Added transition animation for all browsers
- Sidebar css in different file
TODO:
 - Check for different windows sizes

 - Basic sidebar functionalityes
TO-DO:
 - put sidebar styles in separate css file
 - Make sidebar for universal for other pages
Bugs:
 - On hover animation resets after some time
 - Anchor tags not leading to exact location on page

fixing routes not working with slashes on windows

See merge request !1