Merge pull request #3344 from splunk/fix_dashboard_dropdown_match

change match to two underscores

Author: patel-bhavin

app_template/default/data/ui/nav/default.xml

@@ -3,7 +3,7 @@
   <view name="feedback"/>
   <view name="search"/>
   <collection label="Dashboards">
-    <view source="unclassified" match=" - "/>
+    <view source="unclassified" match="__"/>
   </collection>
   <a href="https://docs.splunk.com/Documentation/ESCU">Docs</a>
 </nav>