Issue with uploading CSV for custom packs

Hi! I've been having problems making a custom pack from a CSV, on Firefox specifically. When I click on "Import CSV", I get an error message saying "File is not a CSV"... even though it is a CSV and it's formatted properly.

I only get this error on Firefox - it doesn't happen on Edge.

Hi, this is fixed and the fix is now live! Firefox uses a different MIME type for CSV files it seems.

Can confirm it works on my end now - thank you so much! :)