Minify service worker script before in-lining in html

[anubhav7495]

Hi,

Currently build/service-worker-prod.js is inlined into HTML file without any minification.
This results in index.html to be 4.07 KB in size.

If we minify the file with uglify-es plugin before inlining, the resulting index.html is only 2.42 KB in size.

I have used this in my hnpwa-vue app to get a much lower TTI.

I would love to open a pull request to add something like that to the template.

[anubhav7495]

Without minification index.html 4.07 KB

With minification index.html 2.42 KB

[anubhav7495]

Can somebody take a look at the pull request, please? Would love to hear comments for improvement and have this merged.

Thanks.