Temporarily change <content src="index.html" /> to <content src="URL_TO_YOUR_MACHINE:PORT" />. Close app, run quasar dev then open your app. You’ll get hot module reload on dev code 😉
Make sure to edit .eslintrc.js too because linters will pick it up. Can’t remember which rule to change in your case. Guess just try to format however you like and see which linter error pops up.