Restructure filemanager commands

[brandenrodgers]

Description and Context

Refactoring the filemanager commands. This one is pretty small. Just removing the options that show when running hs filemanager with no sub command.

I also found a bug in the fetch command where we weren't respecting the override option. I don't think it was being used anywhere in the upload command so I didn't add it in there.

hs filemanager

• Update description to: "Commands for managing files in the File Manager."
• Remove all flags except for the --help flag because they don't do anything
• Fix duplicate argument issue for config and account in nested commands

hs filemanager upload

• Update description to: "Upload a folder or file to the File Manager."
• Remove --version flag because it's unnecessary

hs filemanager fetch

• Update description to: "Fetch a folder or file from the File Manager."
• Remove --version flag because it's unnecessary

Screenshots

TODO

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