Media asset file names in GiraffeSpotter replace _ with .

[goddesswarship]

Expected behavior Media asset file names match between the bulk import spreadsheet and the file name in Wildbook per the resolution of https://github.com/WildMeOrg/Wildbook/issues/412

Current behavior Media asset file names with underscores in the spreadsheet are replaced with periods (.) once they're uploaded to GiraffeSpotter.

Encounter.mediaAsset0
uga_puwr_202403_1696.JPG
uga_puwr_202403_1694.JPG

Bulk import link: https://giraffespotter.org/import.jsp?taskId=26522520-9094-4ebb-9ddf-7bb05fdcb0ac

Community link https://community.wildme.org/t/not-reading-underscores-in-bulk-import-sheet/3135

[goddesswarship]

Assigning to @naknomum specifically because it's GiraffeSpotter weirdness.