fix: import export 4 support

[lukasvinclav]

No description provided.

[ZairMahmood]

Import and export work. The formatting for multiple resources look like this:

One tiny bug I found:

• If you select a file
• Import it but don't confirm.
• Go back a page (using browser back button)
• Then select a different file again
• The file field doesn't update with the file name.

[ZairMahmood]

otherwise, lgtm since import is working again 👍

[lukasvinclav]

Fixed the message. I was not able to replicate the issue with filenames. In the future we can open a new ticket for it.