nav: ui improvements

[jwooning]

• [ ] search bar
  • [ ] add how far away search results are (remove zip and country)
  • [x] always show scroll bar
• [ ] search results
  • [ ] add names next to pins
  • [ ] clicking on pin shouldn't zoom out if both the start and end are in view
• [ ] make nav fullscreen on mobile on search
  • [ ] switch to slide up style results list on map movement on mobile (to keep result list after panning)

[sshane]

clicking on pin shouldn't zoom out if both the start and end are in view would solve a lot of my headaches! @incognitojam want to keep this issue open or split stuff out into your own issues?