Record UI Serialization fails for Locations with Polygon geometries

[spilth]

Package version: 16.5.1

Describe the bug

I am creating records in Invenio RDM where the Locations metadata field contains a Polygon. I am able to post these records via the REST API successfully, but when I go to view the record via the web interface the page fails with the error:

TypeError: float() argument must be a string or a number, not 'list'

I believe this is caused by a limitation in this repo's code.

Steps to Reproduce

1. Create a record with a polygon location:

"geometry": {
    "type": "Polygon",
    "coordinates": [[[0, 0], [1, 0], [1, 1], [0, 1], [0, 0]]],
},

2. Dump the object using UIJSONSerializer().dump_obj(full_to_dict_record)

Expected behavior

The JSON contains the coordinates provide in the original record.

Actual behavior

Receive the error: TypeError: float() argument must be a string or a number, not 'list'

Additional context

This appears to be cause by the UI Serializer's GeometrySchema only expecting/supporting Point coordinates.

If you use the REST API to upload a record with non-Point locations, it breaks the search page and record indexing.