[gnome-tour] Non-fast-forward update to branch pan-tour-gradients

[Jakub Steiner <jimmac src gnome org>]

The branch 'pan-tour-gradients' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  8943a5a... assets: preliminary GNOME 40 changes
  8d07ca3... GNOME 40 Tour
  852881d... add a generic page style class
  6121b7a... experimental: colored backgrounds
  ea63211... experimental: animated backgrounds
  81b7b50... animate touchpad
  0624c58... timing and color tweaks
  610f74e... illustration tweaks
  b432ce1... update backgrounds
  8971014... assets: use more gradients, other cleanups

Commits added to the branch:

  12829c0... assets: preliminary GNOME 40 changes