Improve third-party app installation

[Leó Kolbeinsson]

In the Lubuntu Noble ISO, there is the option to install third-party applications. This tracks the following:

 - Snaps on the backend should auto-resolve dependencies... somehow. That way we don't have bitrot come LTS time.
 - When selecting the Minimal install, the checkboxes should disappear entirely.
 - When selecting the Full install, it should automatically check all four of those boxes, even if it just hides them/displays a read-only/disabled copy. Normal should be the only option in which you can freely manipulate the checkboxes.
 - We may want to move this from QML to a dedicated UI file to fit with theming better.
 - We need some kind of translations, even if we can somehow convince upstream Calamares to adopt our module, to get that translation support.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Simon Quigley (tsimonq2)]

Being the one who wrote this, let me re-frame the bug.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/2045580

[ԜаӀtеr Ⅼарсһуnѕkі (wxl)]

Assigned to Simon. He says he has "all the necessary code written for the process to be sustainable" and that he needs "to nag the snapd team for the final bit." He also says he's targeting this for Noble.

[Leó Kolbeinsson (leok)]

Tested full install for Lubuntu Noble - ISO 20240407.2 Selecting full install checked all 4 boxes but the only 3rd party app installed was VirtMachineManager.

[Simon Quigley (tsimonq2)]

Snaps take a minute or two to install on first boot. The last part of this is to add some UX so users don't freak out.

[Launchpad Janitor (janitor)]

This bug was fixed in the package lubuntu-default-settings - 24.04.9

---------------
lubuntu-default-settings (24.04.9) noble; urgency=medium

  * Create lubuntu-snap-installation-monitor, which tells the user if snaps
    are still being pre-seeded in the background. Mostly used in the case of
    preseeding a lot of snaps, or preseeding snaps on a slower machine
    (LP: #2045580, LP: #2061318).

 -- Simon Quigley <email address hidden> Sun, 14 Apr 2024 15:49:12 -0500

[Leó Kolbeinsson (leok)]

Tested Lubuntu daily ISO dated 20240416.1 and the lubuntu-snap-installation-monitor looked good.