Manual validation UI for final (conflated) data submission

Is your feature request related to a problem? Please describe.

Following on from https://github.com/hotosm/fmtm/issues/1548
If we have a conflated GeoJSON, we should display it on a map, with certain conflation displayed as green, and uncertain conflation displayed in red.
The user should be able to select which geometry they want to accept for the uncertain conflation (i.e. two buildings that overlap).

Describe the solution you'd like

A frontend page that is mostly a map, with a toolbar.
Geometries are coloured by certainty.
Clicking the geometry shows it's tags and metadata.
Uncertain conflation is displayed as red coloured geometry pairs - there should be an easy way to distinguish a pair of geometries from another pair of geometries.
When clicking a geometry, a button should be available to 'accept this as the correct geometry'.
- Accepting will remove the incorrect geometry in the pair from the GeoJSON in the frontend.
Submission should be blocked until all conflicts are resolved.
Once validation is done, the user can click a button to upload to OSM.

Additional context

By returning conflated tags for both geometries in a pair, we avoid the need for another endpoint call for tag conflation after a geometry is selected.
Is it possible to load in ID Editor for the geometry manipulation? Is this desirable?

Design notes for the design team

Map display:

The page should be mostly a map, with a sidebar.
Buildings will be displayed as polygons on the map.
Buildings with no conflicts displayed in green.
Buildings with tag conflicts displayed in yellow.
Buildings with possible geometry conflicts (i.e. intersecting boundaries) displayed in red (i.e. this will always be a pair).

Sidebar:

The sidebar should be similar to the project detail page in FMTM.
We need some simple stats displayed:
- Total features
- Number of geometry conflicts
- Number of tag conflicts
Two buttons:
- Validate Submission
- Request Additional Mapping (i.e. there is an issue that cannot be resolved).

Geometry conflict resolution popup:

To resolve a pair of geometries that conflict (i.e. select which geometry is valid), the user should click on the buildings.
Clicking on a building shows a small popup with a button 'accept geometry'.
If the user clicks the 'accept geometry' button, then the building is selected.
The other building in the pair gets deleted.

Tag conflict resolution modal:

Clicking a building should show a popup modal.
The modal should include a list of tags for the feature.
If there is a conflict, there should be buttons to either:
- Accept new changes
- Reject new changes (use old one)
- Edit manually (i.e. combine them manually)