KML and ZIP download with regions filter

With regionOrigin selected, the KML or downloading data (ZIP, Excel) do not respect the new filter.

To replicate:

1. Open https://sandbox.genesys-pgr.org/explore?page=1&filter=%7B%22regionOrigin%22%3A%5B%22018%22%5D%7D&results=50
2. It shows 23,378 accessions from Southern Africa
3. Download ZIP is enabled (<200,000 limit), but will refuse to download because it's more that 200,000 without regionOrigin

To fix, ensure that the new filters (regionOrigin, regionHoldInst) are respected in:

• DWCA download
• Excel download
• KML download