Simplify Boot Environments

TODO: Call something else like System Rollback, Installed TrueNAS versions, Boot Pool?

Provide stats right there on the top of the page.

Boot Pool Status => Boot Pool Vdevs

Move Boot Pool Status to the same page.

Scrub Boot Pool => Scrub Now

Move Keep toggle inside Keep column.

Change Activate to Use on next reboot or Restore.


• Change icon to arrow back.

Now - add green checkmark to indicate that it is used.