Cleanups and improvements to output on snipeit:restore command

[uberbrady]

This tweaks a few different things about the snipeit:restore Artisan command:

• Some directories that got renamed in August might not be put in the right place when restoring from an 'old' (pre-August 2025) version of Snipe-IT into a post-August version
• public/uploads/assetmodels doesn't seem like it was ever a thing - pre- or post- August.
• We don't need to keep reporting on every silly macOS resource fork that we skip. Nobody cares.
• When we skip a 'bare directory' we don't need to report on those either.
• I got tired of seeing files like .gitkeep, .gitignore and .DS_Store getting reported, so I pulled out reporting of them as well.
• We make a different distinction between 'public' files and 'private' ones - for example, we allow you to have CSV's in private storage, but don't support them on the public side
• We have to do some special logic to ensure that import files - which just end in csv without the . - can now be saved into the imports directory.

I was very tempted to refactor as I mentioned in the TODO but the fact is, this code works, as-is. So I decided against it. But I definitely would recommend that we do that refactor the next time we need to do any moderate amount of 'surgery' on this file.