fix/ jslib in main process error

package.json

@@ -1,6 +1,6 @@
 {
   "name": "angular-electron",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "description": "Angular 6 with Electron (Typescript + SASS + Hot Reload)",
   "homepage": "https://github.com/maximegris/angular-electron",
   "author": {
@@ -37,7 +37,8 @@
     "test": "npm run postinstall:web && ng test",
     "e2e": "npm run postinstall:web && ng e2e"
   },
-  "dependencies": {},
+  "dependencies": {
+  },
   "devDependencies": {
     "@angular-devkit/build-angular": "0.6.3",
     "@angular/cli": "6.1.2",