Add Distrobox indicator

[daudix]

Description

Added distrobox indicator, same as for toolbox

Motivation and Context

It adds useful indicator for distrobox, which allows for easier understanding where are you

Closes #332

Screenshots (if appropriate)

How Has This Been Tested

This changes are not tested, will be good if someone will test this, but this should work

• [ ] I have tested using Linux.
• [ ] I have tested using MacOS.

Checklist

• [ ] I have updated the documentation accordingly.
• [ ] I have updated the tests accordingly.

[IlanCosman]

Hi, sorry for the delay on reviewing this. I haven't had access to a linux machine for a while, but will again soon.

[daudix]

No problem ;)