updated fileserver directory name

[zackbradys]

Please check below, if the PR fulfills these requirements:

• Commit(s) and code follow the repositories guidelines.
• Test(s) have been added or updated to support these change(s).
• Doc(s) have been added or updated to support these change(s).

Associated Links:

• N/A

Types of Changes:

• Feature

Proposed Changes:

• Updated the directory for the fileserver to be fileserver to match the registry directory of registry

Verification/Testing of Changes:

• Add artifacts to your store, then run hauler store serve fileserver and you will see the new directory name.

Additional Context:

• N/A

[dweomer]

Would rather see this sidelined in favor of a unified hauler store serve

[zackbradys]

@dweomer very understandable. I wasn't sure how long it would take for the unified hauler store serve to be implemented into hauler, so this would be for the interim so the registry and fileserver would have the same look and feel and workflow.

I don't there would be any existing workflows or functionality that depends on the directory name, so thought it would be safe to update it