adding graph ql for Helm versions - master (#22)

* Adding graphql to find out latest helm version of specified type

* Updating package-loc.json

* Updating js file

* Fixing PR comments

* Adding feature flag as environment variable

* Changing feature flag name

* Updating package-loc.json

package-lock.json

@@ -6166,4 +6166,4 @@
             }
         }
     }
-}
+}