Added vehicle groups and age calculations.

package.json

@@ -17,6 +17,7 @@
     "dotenv": "^8.2.0",
     "electron-is-dev": "^1.2.0",
     "electron-log": "^4.2.4",
+    "electron-reload": "^1.5.0",
     "electron-store": "^6.0.1",
     "electron-updater": "^4.3.5",
     "firebase": "^7.23.0",
@@ -44,6 +45,7 @@
     "test": "react-scripts test",
     "eject": "react-scripts eject",
     "dev": "concurrently -k \"npm start\" \"npm:electron\"",
+    "electron": "wait-on tcp:3000 && electron .",
     "pack": "electron-builder --dir",
     "dist": "electron-builder",
     "postinstall": "electron-builder install-app-deps"