New Feature: Tails Cloner --backup cmd line option
This MR is based on Fix Tails Cloner bug: button sensitivity or lab... (!1302 - merged)
Closes #20044 (closed).
Simply pre-checks the 'Clone Persistent Storage' check button.
Does not remove sensitivity or visibility of the check or radio buttons like the original !1292 (closed) MR.
Edited by boyska