[gnome-software] (10 commits) ...Merge branch '1354-translation-infobar' into 'main'

[Philip Withnall <pwithnall src gnome org>]

Summary of changes:

  98a4fd3... gs-app: Add a has-translations property
  8cc6770... gs-appstream: Set has-translations on apps which have trans
  1577a51... gs-appstream: Fix querying for language support
  97bc4f0... icons: Update external-link-symbolic to not use strokes
  8484fd1... gs-app-translation-dialog: Add a new dialog to highlight ap
  53f896e... gs-details-page: Add an infobar to highlight missing transl
  e939b7d... gs-details-page: Ensure large context tile lozenges are squ
  991120e... gtk-style: Add some comments to clarify size calculations
  cbd88c4... gs-*-context-dialog: Remove redundant heading class
  d214433... Merge branch '1354-translation-infobar' into 'main'