[gnome-tour] (13 commits) ...Merge branch 'bilelmoussaoui/video' into 'master'

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

Summary of changes:

  faa5f3c... remove uncessary title prop (*)
  a30ffee... add a welcome video page (*)
  b51e78f... make the video configurable (*)
  81dc844... surround the welcome page with a handy handle (*)
  1c3b344... hide the video at start and animate it when the player star (*)
  7916395... assets: half size (*)
  45d51aa... adapt for new assets size (*)
  db97321... use clone! correctly if feature=video (*)
  1c24350... correctly play the video, avoid looping (*)
  872a038... Flatpak: remove uneeded home access was mostly there for he (*)
  8eee9c1... document the video feature (*)
  b70e4f1... misc: fix cargo fmt (*)
  117ebe9... Merge branch 'bilelmoussaoui/video' into 'master'

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