simplify page structure; include search, lightswitch

Author: mschubert

_pkgdown.yml

@@ -1,28 +1,25 @@
 template:
-  bootstrap: 5
-  light-switch: true
+    bootstrap: 5
+    light-switch: true
 
 toc:
     depth: 2 # level 3 currently not distinguishable from 2
 
 navbar:
-    type: default
-    left:
-        - icon: fa-home
-          href: index.html
-        - text: User Guide
-          href: articles/userguide.html
-        - text: Technical Documentation
-          href: articles/technicaldocs.html
-        - text: FAQ
-          href: articles/faq.html
-        - text: Reference
-          href: reference/index.html
-        - text: Changelog
-          href: news/index.html
-    right:
-        - icon: fa-github fa-lg
-          href: https://github.com/mschubert/clustermq
+    structure:
+        left:  [ home, userguide, technicaldocs, faq, reference, news ]
+        right: [ search, github, lightswitch ]
+
+    components:
+        userguide:
+            text: User Guide
+            href: articles/userguide.html
+        technicaldocs:
+            text: Technical Documentation
+            href: articles/technicaldocs.html
+        faq:
+            text: FAQ
+            href: articles/faq.html
 
 reference:
     - title: Overview