UX: Add functionality to enable "Share"/"Visibility" feature for Static Assets

[joepavitt]

With #4358 we delivered the Static Assets service which allows users to upload files and create folders to organise files such as csv, json, etc.

In this task, we also want to implement the ability to expose those files on the static HTTP server, for easier serving to things like Node-RED Dashboard.

This access is managed at the folder-level - more detail available in the "Share Setting" section of #4357

Tasks

Beta Give feedback

1. Add a directory navigation component #4449
   area:frontend size:S - 2 +2
   
2. Add a share/visibility selector and integrate it with the current API #4461
   area:frontend size:S - 2 +2
   
3. Changelog entry: static file service navigation and visibility website#2592
   +0
   
4. Update docs following the static file service navivagtion and visibility selector changes #4514
   +0