[gimp-web/master] (21 commits) ...Merge remote-tracking branch 'origin/testing'

[Jehan <jehanp src gnome org>]

Summary of changes:

  9885337... content: first draft for GIMP 2.99.8 news. (*)
  5877535... content: some updates to the GIMP 2.99.8 news. (*)
  ebb8c86... Review of the upcoming 2.99.8 release notes (*)
  0f434c2... Add JPEG-XL exporting options screenshot (*)
  3d45675... Fixed heading level for Translators (*)
  59ac8e9... content: some fixes to the GIMP 2.99.8 news. (*)
  77a6bc4... content: forgotten gimp_procedure_dialog_fill_expander() in (*)
  8f45772... content: completing GIMP 2.99.8 news. (*)
  c832092... content: naming Ondřej Míchal for his work on our flatpak n (*)
  004b320... themes: use full URL for og:image. (*)
  6a56c5b... themes: add og:type "article" and published_time metadata. (*)
  1c76c50... content: new image for GIMP 2.99.8 news. (*)
  8afd1c2... Add multi-layer cloning demo from Gleb (*)
  05ccc59... Slightly adjust the text from Gleb's suggestion (*)
  f4574cd... content: remove news "draft" status and set date to tomorro (*)
  a6e4aa1... content: add GIMP 2.99.8 in gimp_versions.json. (*)
  efae986... Add Windows Ink option screenshot (*)
  b49ba36... content: some news updates/fixes. (*)
  6fddb92... tools: increase gimp-check-mirrors tool's timeout for http  (*)
  693447f... content: update GIMP 2.99.8 news. (*)
  b526da7... Merge remote-tracking branch 'origin/testing'

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