Fix the two background in the home component

The banner background image is found at src/routes/Home/components/HomeBanner/HomeBanner.scss and it is using a relative path to get the banner-bg-.png incorrectly. Also How it works had the same problem.

This problem only occurs when you run npm run dev locally. If you run npm run start the banner will work but the other drone images wont.

however when I deploy to Heroku they both seem to work fine.

Please fix this reference link in the corresponding scss and do a PR or let me know what is wrong with my process.