[gtk] (53 commits) Non-fast-forward update to branch wip/baedert/for-master

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/for-master' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  fb96dc1... colorplane: Whitespace
  47edcbd... colorutils: Remove unused macro
  81bb520... gradient shaders: Reduce out values as well
  4f16728... colorplane: Refactor create_texture()
  fca6437... colorutils: Refactor hsv_to_rgb and fold into only caller
  649b22a... colorplane: Remove (un)realize handlers
  be5884f... colorscale: Refactor creating the hue texture
  d243307... gdkgl: Remove unused cairo_get_matrix() call
  f28b32b... gl texture: Flip on download
  713172c... gl renderer: Don't flip when rendering to an fbo
  8e2406d... gdkgl: Remove flipping in draw_from_gl()
  98ba278... glarea demo: Add min size to gl area
  1dcce8c... gl renderer: Use premultiply() in inset shadow shader`
  4a9709d... unblurred outset shadow shader: Use premultiply()
  1e57aea... gdkgl: Rename function
  0d79484... FIXUP: Premultiply commit
  ad84748... gl renderer: Ignore rendering if accumulated opacity is too
  068de8a... gl renderer: Add a helper to setup projection matrix
  e349ad6... shaderbuilder: Print error message after source code

Commits added to the branch:

  68379c3... Adwaita: Simplify stackswitcher button styling (*)
  fd63193... transition demo: Make buttons symbolic (*)
  5829bc7... Use correct child widget when measuring (*)
  fd1e8af... meson: Change introspection option to yielding feature (*)
  dfd16e3... ci: Use a newer meson in images (*)
  517a840... ci: Use the v24 images (*)
  7780b89... ci: Really enable werror (*)
  21c8bc2... build: Require meson 0.54 (*)
  b0da095... gsk: Fix compiler warnings (*)
  72eb89e... gtk-demo: Add the shader paintable sources (*)
  b936419... ci: Remove --fatal-meson-warnings (*)
  103080c... build: Remove an unneeded version check (*)
  91c8f6b... build: Try to fix docs+subprojects (*)
  9bac129... ci: Try to get everything building again (*)
  81cfcba... Adwaita: close button for infobar, searchbar (*)
  6e7c0ce... ci: Give up on sysprof for now (*)
  028cd1e... Revert "Fix the build with cups < 2.3" (*)
  c278261... Merge branch 'wip/jimmac/infosearch-close' into 'master' (*)
  9601863... CI: Enable introspection again for the Windows build (*)
  6de7022... Merge branch 'ci-win32-introspection-enabled' into 'master' (*)
  cbe3de9... Merge branch 'master' into 'matthiasc/for-master' (*)
  ce29545... Merge branch 'matthiasc/for-master' into 'master' (*)
  dc3b140... Cosmetics (*)
  ffb51b6... Require gtk-doc 1.33 (*)
  4d90259... Use gtk-doc from master (*)
  f4bfa16... Update the release script (*)
  c43d535... docs: Fix a copy-paste error (*)
  3cf8904... Add GTK_INPUT_HINT_PRIVATE (*)
  c9f3034... gdk: Remove an unused variable (*)
  f6bd2f4... Add a test for gsk_gl_shader_compile (*)
  da8ee53... emojichooser: Allow inserting multiple Emoji (*)
  68ae850... Merge branch 'stackswitcher-button-styling' into 'master' (*)
  9033336... css: Move _gtk_css_print_string around (*)
  a9809b0... Allow inserting newlines in css strings (*)
  949f22b... Merge branch 'matthiasc/for-master' into 'master' (*)
  8d3fa16... colorplane: Whitespace
  b7c2168... colorutils: Remove unused macro
  818acab... gradient shaders: Reduce out values as well
  93c2466... colorplane: Refactor create_texture()
  ba50e55... colorutils: Refactor hsv_to_rgb and fold into only caller
  0250339... colorplane: Remove (un)realize handlers
  c48d16b... colorscale: Refactor creating the hue texture
  afe762f... gdkgl: Remove unused cairo_get_matrix() call
  c05a278... glarea demo: Add min size to gl area
  ca3cde7... gl renderer: Use premultiply() in inset shadow shader`
  f76b5a2... unblurred outset shadow shader: Use premultiply()
  03bc8ba... gdkgl: Rename function
  ce66d19... gl renderer: Ignore rendering if accumulated opacity is too
  61b2a0c... gl renderer: Add a helper to setup projection matrix
  ad804ea... shaderbuilder: Print error message after source code
  cff4e7b... gl renderer: simplify ->render() implementation a bit
  fa092e4... gdkgl: Stop getting the clip region from cairo
  4a060dd... gdkgl: Remove flipping when downloading GL texture

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