ubuntu-session should recommend gnome-initial-setup and ubuntu-report

[Jean-Baptiste Lallement]

Currently gnome-initial-setup and ubuntu-report are recommends of ubuntu-desktop.
However users may have uninstalled ubuntu-desktop but kept ubuntu-session or may have installed another flavour then installed ubuntu-session afterwards.
In both cases gnome-initial-setup and ubuntu-report are not installed during a release upgrade to bionic but gnome-initial-setup and ubuntu-report still need to run if they log into the ubuntu session.

Based on the upgrade crash reports from xenial to bionic collected by launchpad, over a total of 81 reports:
- 63.0% have ubuntu-desktop installed
- 81.5% have ubuntu-session installed

Which means 18.5% do not have g-i-s and ubuntu-report installed during upgrade.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: ubuntu-session 3.29.90-1ubuntu2
ProcVersionSignature: Ubuntu 4.17.0-6.7-generic 4.17.9
Uname: Linux 4.17.0-6-generic x86_64
ApportVersion: 2.20.10-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Aug 23 12:15:53 2018
InstallationDate: Installed on 2014-07-15 (1500 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140520)
SourcePackage: gnome-session
UpgradeStatus: Upgraded to cosmic on 2018-03-24 (151 days ago)

[Jean-Baptiste Lallement (jibel)]

opened twice as 1788592 weird...