Default serviceWorker.register to false

[JasonGoemaat]

Describe the problem

It took me a while to figure out how to disable this. I had to do a search for 'WorkBox' from all the stupid console messages I got when debugging. I had to read through several pages with invalid information on how to disable these in dev mode and couldn't find anywhere in my project where I'd have a service worker created. Finally I found that I could disable it in svelte.config.js setting config.kit.ServiceWorker.register to false

Describe the proposed solution

Set the default to false for this.

Importance

nice to have