Show status of loading remote shares

Feature Request: user configurable (on/off) bar at bottom of Files window that has number of files, potentially other info (top level directory owner/user/perms?, mount type if remote?) plus "spinner" to show that directory is actively still being read, thumbs being generated, etc.

Context:
- NFS mounted directories with many files (10's of thousands) can be slow in spite of NFS/OS optimizations. (Files is "greased lightning" compared to Mac OS Finder FWIW).
- Currently opening terminal and issuing 'ls -l | wc -l' to get the total number of files.
- Finder shows a spinner at the bottom right when reading a directory but there are probably more elegant ways to present to the user that activity is happening.

Example from Finder:

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>Admin Note: issue reframed to focus specifically on showing the status of loading remote shares.