Offline: Remove downloaded area and view details

yo1995 commented 3 months ago

Description

This PR adds 2 features

Remove downloaded files for a preplanned map area
- By swiping the list row to the left, a delete button is revealed. Once tapped, the directory of the preplanned map area is removed from local disk
- If an area is currently open but is removed, the selectedMap binding will be set to nil so the online web map is used instead
View the metadata of a preplanned map area
- Tapping on the list row will reveal the metadata view, similar to App Store listing
- Currently it get all the metadata from the downloaded files. In the next on-demand workflow, some metadata will be serialized when the area is downloaded

yo1995 commented 3 months ago

Ready for review.

yo1995 commented 2 months ago

Thanks for approving! I was hoping #867 can get reviewed first and merged into this branch. Then I'll merge this PR.