The endpoint returned a 500 error code in all situations because of a missing "Name" field in the response from the IPFS service implementation. This regression was introduced in #859.

This commit gets the filename from the multipart upload or hardcodes it to "file" otherwise.

Explain what problem this PR is resolving

Related Clickup or Jira tickets : ALEPH-XXX

Self proofreading checklist

• Is my code clear enough and well documented
• Are my files well typed
• New translations have been added or updated if new strings have been introduced in the frontend
• Database migrations file are included
• Are there enough tests
• Documentation has been included (for new feature)

Changes

Explain the changes that were made. The idea is not to list exhaustively all the changes made (GitHub already provides a full diff), but to help the reviewers better understand:

• which specific file changes go together, e.g: when creating a table in the front-end, there usually is a config file that goes with it
• the reasoning behind some changes, e.g: deleted files because they are now redundant
• the behaviour to expect, e.g: tooltip has purple background color because the client likes it so, changed a key in the API response to be consistent with other endpoints

How to test

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If a specific config is required explain it here (account, data entry, ...)

Print screen / video

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Notes

Things that the reviewers should know: known bugs that are out of the scope of the PR, other trade-offs that were made.
If the PR depends on a PR in another repo, or merges into another PR (i.o. main), it should also be mentioned here