Link - Update "Get directions" link

[jessicawoodin]

Currently, the "Get directions" link launches a "You're leaving the app" alert before opening the default maps app.

In the new Link component, we'd like the "Get directions" link to launch an action sheet before opening the user's map app. The action sheet should mimic the functionality below, but will depend on the user's apps.

AC:

• [ ] Add the Directions Link type with this nuanced behavior
• [ ] user preferences determine what options appear in the action sheet
  • [ ] discovery needed to determine how this will work
  • [ ] may need to prefix the link to open in the specified app
  • [ ] need to provide the directions in the format expected by the map program
• [ ] Add unit tests validating action sheet for directions and, if appropriate, action sheet generally

[kellylein]

Because the app does not currently function this way, we can come back to this functionality after MVP.

[TimRoe]

Added new AC to ensure unit test coverage:

Add unit tests validating action sheet for directions and, if appropriate, action sheet generally

as it was decided to test existing behavior fully with url variant of Link with this change in the pipeline.