updated both-tsc npm script

Author: lu0713

package.json

@@ -13,7 +13,7 @@
     "test:electron": "jest --detectOpenHandles ./__tests__/electron/*",
     "test:app": "jest ./__tests__/app/*",
     "both": "npm run start & sleep 5 && npm run electron",
-    "both:tsc": "nodemon --watch ./app & (npm run start && sleep 5 && npm run electron)",
+    "both:tsc": "nodemon --watch ./app & npm run start & sleep 5 && npm run electron",
     "both:dev": "npm run start & nodemon --watch ./electron --exec 'npm run electron'",
     "package-mac": "electron-packager . --overwrite --platform=darwin --arch=x64 --icon=assets/icons/mac/icon.icns --prune=true --out=release-builds",
     "create-installer-mac": "electron-installer-dmg ./release-builds/chronos-darwin-x64/chronos.app/ Chronos",