Cached file and cached local storage are used every time a build occurs

[lauslim12]

There is an issue that I noticed that some people are still stuck on the Venti banner unless they perform a hard reset or cleared their cache.

My solution is to clear the local storage every time a new build occurs, and instead of using main.js in the index.html file, I propose that we use HTMLWebpackPlugin to call main.js?<hash>.

With this, I believe that every time a new build occurs, people will not have to perform a hard reset again (we're basically fooling the browser into thinking that we have a new build).

I am currently working on it, will make a PR as soon as I am done testing this.

Thank you!