Merge branch 'ci-fedora-42' into 'master'

doc: bump CI Fedora version to Fedora 42 + update doxygen-awesome.css

Closes #4771 and #4931

See merge request pipewire/pipewire!2570

.gitlab-ci.yml

@@ -38,8 +38,8 @@ include:
 .fedora:
   variables:
     # Update this tag when you want to trigger a rebuild
-    FDO_DISTRIBUTION_TAG: '2025-07-17.0'
-    FDO_DISTRIBUTION_VERSION: '41'
+    FDO_DISTRIBUTION_TAG: '2025-10-15.0'
+    FDO_DISTRIBUTION_VERSION: '42'
     FDO_DISTRIBUTION_PACKAGES: >-
       alsa-lib-devel
       avahi-devel

doc/custom.css

@@ -1,4 +1,4 @@
-:root {
+html {
 	/* --page-background-color: #729fcf; */
 	--primary-color: #729fcf;
 	--primary-dark-color: #729fcf;
@@ -8,7 +8,7 @@
 }
 
 @media (prefers-color-scheme: light) {
-	:root {
+	html {
 		--code-background: #f5f5f5;
 		--code-foreground: #333333;
 		--fragment-background: #f5f5f5;