[gtk] (37 commits) ...Merge branch 'deprecate-render' into 'main'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  0c99e69... flowbox: Stop using gtk_render_background (*)
  da5d5bd... popover: Stop using gtk_render_background (*)
  808d009... printunixdialog: Stop using gtk_render_ apis (*)
  3537075... Deprecate gtk_render apis (*)
  60dafeb... Deprecate gtk_snapshot_render apis (*)
  473065d... flowbox: Port to the gtk_css_style_snapshot api (*)
  4e2522a... iconview: Port to the gtk_css_style_snapshot api (*)
  2b00b64... popover: Port to the gtk_css_style_snapshot api (*)
  c2c46a7... printunixdialog: Port to the gtk_css_style_snapshot api (*)
  0205caa... scrolledwindow: Port to the gtk_css_style_snapshot api (*)
  73f991a... Add gtk_css_style_snapshot_layout (*)
  3145bce... render: Use the new layout render api (*)
  dd3c371... inscription: Stop using gtk_snapshot_render api (*)
  484cff2... glarea: Stop using gtk_snapshot_render api (*)
  0522dad... Add gtk_css_style_snapshot_caret (*)
  57c63d9... Use the new caret rendering api (*)
  381f863... label: Stop using gtk_snapshot_render api (*)
  ee76105... text: Stop using gtk_snapshot_render api (*)
  616e0a0... textview: Stop using gtk_snapshot_render api (*)
  6f24bd9... demos: Ignore deprecations for render apis (*)
  d03ee57... flowbox: Stop using gtk_style_context_save_to_node (*)
  bf9f362... popover: Stop using gtk_style_context_save_to_node (*)
  50ab238... printunixdialog: Stop using gtk_style_context_save_to_node (*)
  c354465... scrolledwindow: Stop using gtk_style_context_save_to_node (*)
  01324ff... label: Stop using gtk_style_context_save_to_node (*)
  a71893f... text: Stop using gtk_style_context_save_to_node (*)
  e09138c... textview: Stop using gtk_style_context_save_to_node (*)
  5f54ecd... aboutdialog: Stop using gtk_style_context_save (*)
  299fbfd... tests: Ignore deprecations for render api (*)
  ee8c2a2... stylecontext: Deprecate most apis (*)
  b1ec43a... demos: Ignore deprecations (*)
  ccaaff4... testsuite: Ignore deprecations (*)
  ac3177c... tests: Ignore deprecations (*)
  f42fe50... cssnode: Avoid style context api (*)
  5627542... Add gtk_widget_get_style_color (*)
  812a879... inspector: Use gtk_widget_get_style_color (*)
  ed87473... Merge branch 'deprecate-render' into 'main'

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