Swap current mapbox filter expressions with pure JS alternative

[annijabolton]

Purpose

This should be applied to all pages with a map that is currently setting the mapbox filtering expressions, and will further improve the speed of the application as fewer points will need to be queried to determine which are within the current view.
Max 6h

Considerations

Completion Criteria

• Example uncompleted checklist item
• Example completed checklist item

Additional context

[idaeusice]

This ties in heavily with #816, as the returned points can be used to populate the filter handling and prevent needing excessive map querying and mapbox expressions.