search: add ACS versioning

* The search is now using the `version` variable for ACS search result
  filtering.

Signed-off-by: Jiri Fiala <[email protected]>

Author: jiri-fiala

_templates/_page_openshift.html.erb

@@ -198,7 +198,7 @@
     'openshift-enterprise': ['docs_cp', version],
     'openshift-aro' : ['docs_aro', version],
     'openshift-rosa' : ['docs_rosa'],
-    'openshift-acs' : ['docs_acs']
+    'openshift-acs' : ['docs_acs', version]
   };
 
   // only OSD v3 docs have the version variable specified