fix/ build serve & electron with single tsc command

Author: maximegris

package.json

@@ -1,6 +1,6 @@
 {
   "name": "angular-electron",
-  "version": "4.2.1",
+  "version": "4.2.2",
   "description": "Angular 6 with Electron (Typescript + SASS + Hot Reload)",
   "homepage": "https://github.com/maximegris/angular-electron",
   "author": {
@@ -22,12 +22,11 @@
     "postinstall:electron": "node postinstall",
     "ng": "ng",
     "start": "npm run postinstall:electron && npm-run-all -p ng:serve electron:serve",
-    "build": "npm run postinstall:electron && npm run electron:tsc && ng build",
+    "build": "npm run postinstall:electron && npm run electron:serve-tsc && ng build",
     "build:dev": "npm run build -- -c dev",
     "build:prod": "npm run build -- -c production",
     "ng:serve": "ng serve",
     "ng:serve:web": "npm run postinstall:web && ng serve -o",
-    "electron:tsc": "tsc",
     "electron:serve-tsc": "tsc -p tsconfig-serve.json",
     "electron:serve": "wait-on http-get://localhost:4200/ && npm run electron:serve-tsc && electron . --serve",
     "electron:local": "npm run build:prod && electron .",