Allow users to update edit their Career history.

[sroelants]

As far as I can tell, there is no way for users to change/remove/update a resume they have uploaded. This could be as simple as a little 'x' next to the document name to remove it.

[sroelants]

I noticed that uploading a new document simply overwrites the old one, which I suppose is sufficient in most cases. Though it feels unobvious. Feel free to close if you think this is a non-issue.

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[workshub-stage]

This issue is now published on WorksHub. If you would like to work on this issue you can
start work on the WorksHub Issue Details page.