[gnome-software] (25 commits) ...Merge branch 'wip/exalm/style-cleanups' into 'main'

[Milan Crha <mcrha src gnome org>]

Summary of changes:

  d953400... style: Remove backdrop styles (*)
  7b0ca19... style: Remove text shadows (*)
  0a59f50... style: Remove unused styles (*)
  b33b4c4... style: Remove selector GTK3-isms (*)
  275d17e... details-page: .content-box -> .card (*)
  b94ace9... style: .installed-icon -> .accent (*)
  c125c89... style: Clean up tiles (*)
  0b63b82... style: Use .heading instead of .index-title-alignment-softw (*)
  0ba0231... style: Use .caption instead of .app-row-installed-label (*)
  5714945... details-page: Use .heading for the webapp warning label (*)
  fdf91a5... review-bar: Remove the bar height hack (*)
  5a5755b... style: Clean up review styles (*)
  0cc40e9... details-page: Use standard styles for the origin popover (*)
  6879223... os-update-page: Clean up the section style (*)
  16ae7aa... app-row: Don't override padding (*)
  9cd9080... upgrade-banner: Clean up styles (*)
  0441ba7... updates-page: Clean up the eol banner (*)
  4fb68ca... style: Update featured carousel radius (*)
  2d5ab9a... styles: Remove gtk text styles (*)
  1c32c3a... styles: Remove flat header bar style (*)
  f7d1318... style: Update .list-page styles (*)
  f01b506... app-context-bar: Use standard styles (*)
  4718d32... style: Remove .toolbox (*)
  501ef27... style: Fix indentation (*)
  b80222e... Merge branch 'wip/exalm/style-cleanups' into 'main'

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