[BUGFIX] styleguide: Update a broken template id attribute

https://github.com/TYPO3-CMS/styleguide/pull/472

typo3/sysext/styleguide/Resources/Private/Templates/Backend/Notifications.html

@@ -8,7 +8,7 @@
 
 <f:section name="Content">
 
-    <div id="""vigation">
+    <div id="tx-styleguide-navigation">
         <f:render partial="Backend/Navigation" arguments="{currentAction: currentAction, actions: actions}" />
     </div>
     <div id="tx-styleguide-content">