Ensure facility types in filters are valid

[ggiraldez]

The chosen facility types saved for the project filters in the database may contain invalid types after a Resourcemap import. This is because the facility types are re-created on each import and hence new ids are generated. The existing, now invalid, ids are never checked against the current available facility type ids and they can accumulate indefinitely. At some point they should be intersected against the existing types and prune the invalid ones.

[ggiraldez]

No longer relevant since for the moment we're not allowing updates to datasets.

[ggiraldez]

This can still happen for deleted facility types.