[Task] Add Retry button for each failed file upload

## Describe the feature

> > Re-submitting is just a retry for failures.

> On that note... maybe individual retry buttons for each failed file would make sense, and Submit would retry all failures.

> That's an enhancement to think about later though. The user can already simulate that in a sense by closing and re-opening the modal and trying each failed file separately, if they ever run into a situation where this might help somehow.

## Any other information?

_Originally posted by @andrewazores in https://github.com/cryostatio/cryostat-web/issues/691#issuecomment-1341585874_

Start by locating the file-upload modal and the state or controls for failed files, then inspect how the existing Submit retry behavior works. Done means each failed file has its own Retry button while Submit can still retry all failures; update the relevant tests if they exist.

Written by the indexing model from the issue text.