Improve Sidebar

[josharnow]

• [x] When the screen is "mobile sized" (i.e. small enough), make navbar operate on top similarly to old navbar. Will probably involve conditionally setting flex/flex-column on parent element here based on screen size (i.e. via Tailwind)
• [x] Make sidebar sticky
• [x] Make navbar sticky
• [ ] #41
• [ ] Make toggle for opening/closing side pane
• [ ] Make Sidebar component similar to the way the old navigation component was (i.e. with a toggle)
• [ ] #42 OR
• [x] Make navbar & sidebar animate in

[josharnow]

• Might want to use this menu component in the sidebar.
• This menu bar component could be good for the mobile navbar.

[josharnow]

This is a good sidebar component