fix/ typo script npm electron:windows

Author: maximegris

package.json

@@ -31,7 +31,7 @@
     "electron:serve": "wait-on http-get://localhost:4200/ && npm run electron:serve-tsc && electron . --serve",
     "electron:local": "npm run build:prod && electron .",
     "electron:linux": "npm run build:prod && electron-builder build --linux",
-    "electron:windows": "npm run build:prod && .electron-builder build --windows",
+    "electron:windows": "npm run build:prod && electron-builder build --windows",
     "electron:mac": "npm run build:prod && electron-builder build --mac",
     "test": "npm run postinstall:web && ng test",
     "e2e": "npm run postinstall:web && ng e2e",