move all css files over to components dir

docs/_data/nav.yml

@@ -8,6 +8,7 @@
         - title: Bower
         - title: npm
     - title: Contents
+    - title: Examples
     - title: Compiling
     - title: Browser and device support
     - title: Third aprty support
@@ -15,8 +16,6 @@
     - title: License FAQs
     - title: Translations
 
-- title: Examples
-
 - title: Components
   pages:
     - title: Scaffolding