wip: rename modules.js

package.json

@@ -4,7 +4,7 @@
   "description": "Gramex 1.x interaction library",
   "license": "MIT",
   "author": "S Anand <s.anand@gramener.com>",
-  "module": "index-g1.js",
+  "module": "modules.js",
   "main": "dist/g1.js",
   "jsdelivr": "dist/g1.min.js",
   "unpkg": "dist/g1.min.js",