Plone.mls.listing

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- Fixed wrong JS code for map in listing details.
- Bugfix: The interior area search is now mapped to the 'floor_area' index, which applies to both residential and commercial types.

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- Add workflow state options for Active, PendingSale, and Sold to listing collection configuration.
- Add sort options to configuration for Listing Collections.
- Add the reverse sort parameter as a configurable option in Listing Collections.
- Add the agency priority option and override agency ID option to Listing Collections.
- Add lot size, interior area, bedroom, bathroom configuration options to listing collections.
- Bugfix: special characters in geocoordinates cause errors when trying to view the listing.

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- add MultiSelect widgets to ListingCollections
- migrate existing ListingCollections

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- add Geolocation map
- change sort order for RecentListings to "last activated"

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- Email templates are i18n message strings in order to be translatable.

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- mobile improvement ListingDetails
- additional spacing around embedding video
- added migration step