[gnome-font-viewer] (17 commits) Non-fast-forward update to branch wip/ewlsh/gtk4

[Christopher Davis <christopherdavis src gnome org>]

The branch 'wip/ewlsh/gtk4' 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:

  fcd66ff... Port to GTK4
  0aeb878... font-view: Use AdwWindowTitle for window titles
  9c3ffaa... font-view: Vertically expand previews
  47b29ef... font-view: Don't cast header as GtkHeaderBar for `set_title
  cee7092... font-view: Remove unused variables
  ddd2aba... font-view: Use AdwApplication

Commits added to the branch:

  6daaf1f... Updated Spanish translation (*)
  2369cff... flatpak: Add `runtime-version` (*)
  e13e30d... flatpak: Remove desktop file prefix (*)
  214eefe... Prepare release 42.alpha (*)
  f0c81db... build: Post-release version bump (*)
  8841111... Updated Czech translation (*)
  32bab71... Update Chinese (China) translation (*)
  84aaadc... Update Russian translation (*)
  83f0475... Update Brazilian Portuguese translation (*)
  f02b1f7... Update Occitan translation (*)
  172e1dc... Update Slovenian translation (*)
  51d33db... Port to GTK4
  f63d4bc... font-view: Use AdwWindowTitle for window titles
  33dcb80... font-view: Vertically expand previews
  222570e... font-view: Don't cast header as GtkHeaderBar for `set_title
  1bc2078... font-view: Remove unused variables
  2abc40c... font-view: Use AdwApplication

(*) This commit already existed in another branch; no separate mail sent