ci(website): validate docs build in pull requests

Catch broken Docusaurus links before website changes merge.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

.github/workflows/docs.yml

@@ -1,6 +1,11 @@
 name: Azure Static Web Apps CI/CD
 
 on:
+  pull_request:
+    paths:
+      - "website/**"
+      - "themes/**"
+      - ".github/workflows/docs.yml"
   push:
     branches:
       - main
@@ -56,6 +61,7 @@ jobs:
           cp themes/schema.json website/api/data/schema.json
           echo "✅ Copied schema.json to website/api/data/"
       - name: Build Docs And Deploy 🚀
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
         id: builddeploy
         uses: Azure/static-web-apps-deploy@1a947af9992250f3bc2e68ad0754c0b0c11566c9
         with:

website/docs/configuration/general.mdx

@@ -255,7 +255,7 @@ Converters won't catch this change, so you will need to adjust manually.
 [colors]: /docs/configuration/colors
 [accent]: /docs/configuration/colors#standard-colors
 [templates]: /docs/configuration/templates#config-variables
-[vimode]: /docs/segments/vimode
+[vimode]: /docs/segments/system/vimode
 [pwsh-bleed]: https://github.com/PowerShell/PowerShell/pull/19019
 [iterm2-si]: https://iterm2.com/documentation-shell-integration.html
 [Upgrade]: /docs/installation/upgrade