Sidebar component

[kevinhellos]

Please do add a sidebar component with the ability to toggle between its full form and when its on a smaller viewport. Thank you.

[saadeghi]

Related discussion: #2657

There are many ways to implement this type of collapsible sidebar so we can't simply do it in CSS using a class name.
For example, what should be the sidebar width values, what parts of the menu items should be hidden? if there's a search input on the sidebar how should it look like when collapsed? If there are buttons, logos, links without icon, select box, how should they look like when collapsed?
It's a very opinionated case 😅