chore: release blog for Hextra v0.12

* chore: release blog for Hextra v0.12

* Add v0.12 blog translations and proofreading updates

* Merge main into plan-release-v0.12.0 and update build script versions

* Update build environment versions in netlify.toml to HUGO 0.156.0, GO 1.26.0, and NODE 24.13.1

* chore: update banner messages in multiple languages to reflect the release of Hextra **v0.12** in hugo.yaml

* docs(blog): align v0.12 tabs example with image (Photos/Music/Videos)

* docs(blog): fix page context menu wording (dropdown, not right-click)

* docs(hugo): update version link from v0.9 to v0.11 in menu

build.sh

@@ -12,6 +12,7 @@ echo "Using base URL: $BASE_URL"
 MAIN_VERSION="v0.11.3:latest:docs"
 VERSIONS=(
   "main:latest:docs" # latest version always builds from main
+  "v0.11.3:v0.11:docs"
   "v0.10.3:v0.10:exampleSite"
 )