fix: use rollup to bundle worker and main

Author: aminya

package.json

@@ -14,8 +14,10 @@
     "test.lint": "eslint .",
     "test": "npm run build && atom --test spec",
     "clean": "shx rm -rf dist",
-    "dev": "npm run build -- --watch",
-    "build": "tsc -p lib/tsconfig.json || echo done",
+    "tsc.dev": "npm run build -- --watch",
+    "tsc.build": "tsc -p lib/tsconfig.json || echo done",
+    "dev": "npm run clean && cross-env NODE_ENV=development rollup -c -w",
+    "build": "npm run clean && cross-env NODE_ENV=production rollup -c",
     "build-commit": "build-commit -o dist",
     "prepare": "npm run build"
   },
@@ -59,9 +61,12 @@
     "@types/node": "^14.14.37",
     "@types/resolve": "^1.20.0",
     "build-commit": "^0.1.4",
+    "cross-env": "^7.0.3",
     "eslint": "7.23.0",
     "eslint-config-atomic": "^1.12.5",
     "jasmine-fix": "1.3.1",
+    "rollup": "^2.44.0",
+    "rollup-plugin-atomic": "^2.2.0",
     "shx": "^0.3.3"
   },
   "eslintConfig": {