[lightsoff] (7 commits) Non-fast-forward update to branch arnaudb/rework-ui

[Arnaud B. <arnaudb src gnome org>]

The branch 'arnaudb/rework-ui' 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:

  341b6ca... Add a "Start Puzzle" menu button.
  269ccfc... Do not use headerbar subtitle.
  a0e7083... Create AspectFrame in UI file.
  323a8c9... Adapt new UI to small screens.
  6fe551f... Fix warning.
  cbee700... Add first-level hint.
  e047402... Move a resource.

Commits added to the branch:

  be2b2ea... Add a "Start Puzzle" menu button.
  bb39583... Do not use headerbar subtitle.
  6befa77... Create AspectFrame in UI file.
  ee11a8f... Adapt new UI to small screens.
  b1b2571... Fix warning.
  1724fcc... Add first-level hint.
  5c09a4b... Move a resource.