Minitree context menu and unavailable drive hiding

[ale]

This is the scenario...

1. XYplorer running, minitree on, a removable drive plugged in
2. Close XYplorer, eject the drive
3. Next time XYplorer (without the drive plugged in) will show the drive as unavailable

If it's easy to implement I think it would be nice to have a contextual menu for the unaivalable item where we can choose to hide it from the minitree. We already have the option to hide items: "Expansion" > "Hide Folder From Mini Tree" but we can only use that with available items.

Now the nitpicking part it would be nice if the wording changes when instead of a folder we select a drive, I mean maybe it would be more intuitive "Hide Drive From Mini Tree" with drives selected but only if it's easy to do, if the menu is static and the same for all items don't bother...