Design and implement a nice GUI to select additional software packages to make persistent persistent (possibly among those that have been installed during session).
- (preemble) merge the 3 APT persistence options : APT lists cache, APT packages cache, additional software packages
- when Alice (logged with administrative privileges with additional software persistence setup) installs a package, she gets a notification "Do you want to reinstall this software package next time you boot Tails?" with a button to add this package to additional software packages
- when Alice removes a packages incuded in additional software packages, the package is removed from the list of additional software packages and she gets a notification "The software package was removed from your additional software.".
Team: alan (code), sajolida (ux), kurono (reviewer), segfault (reviewer), u (maybe)