Added the missing JS directory in the Constellation build

Author: Vishal

angular.json

@@ -58,6 +58,11 @@
                 "input": "./node_modules/@pega/constellationjs/dist/",
                 "output": "./constellation/prerequisite"
               },
+              {
+                "glob": "*.*",
+                "input": "./node_modules/@pega/constellationjs/dist/js",
+                "output": "./constellation/prerequisite/js"
+              },
               {
                 "glob": "*.*",
                 "input": "./src/assets/",