docs: update navbar examples to use new parameter name

Updates documentation examples to reflect the navbar parameter rename from `menus` to `menu`.
This aligns with the refactored navbar API introduced in commit 476a38f.

Changes:
- Updated navbar shortcode examples in bootstrap-elements.md (EN and FR)
- Changed `menus="sample"` to `menu="sample"`

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: markdumay

exampleSite/content/en/blog/bootstrap-elements.md

@@ -382,7 +382,7 @@ As an example, the following shortcode displays a light navigation header.
 
 <!-- markdownlint-disable MD037 -->
 {{< example lang="hugo" >}}
-{{</* navbar id="navbar-sample" path="blog" color="primary" breakpoint="md" search="false" menus="sample" title="Brand" mode="false" */>}}
+{{</* navbar id="navbar-sample" path="blog" color="primary" breakpoint="md" search="false" menu="sample" title="Brand" mode="false" */>}}
 {{< /example >}}
 <!-- markdownlint-enable MD037 -->
 

exampleSite/content/fr/blog/bootstrap-elements.md

@@ -343,7 +343,7 @@ Utilisez le shortcode `mark` pour {{</* mark >}}mettre en évidence{{< /mark */>
 
 <!-- markdownlint-disable MD037 -->
 {{< example lang="hugo" >}}
-{{</* navbar id="navbar-sample" path="blog" color="primary" breakpoint="md" search="false" menus="sample" title="Marque" mode="false" */>}}
+{{</* navbar id="navbar-sample" path="blog" color="primary" breakpoint="md" search="false" menu="sample" title="Marque" mode="false" */>}}
 {{< /example >}}
 <!-- markdownlint-enable MD037 -->