[Feature request] Service worker to make it PWA installable

[Explosion-Scratch]

There would be a few ways to do this:

• Simply cache the giant icons JSON file using the service worker, done!
• Dynamically cache when stuff is requested + Manually cache with the cache action

This should probably do the trick though:

const dynamicCacheName = 'site-dynamic-v1';
const assets = [/* All static assets, like styles, HTML pages, etc here */]
// activate event
self.addEventListener('activate', evt => {
	evt.waitUntil(
    caches.open(dynamicCacheName).then((cache) => {
      cache.addAll(assets);
    })
  );
  evt.waitUntil(
    caches.keys().then(keys => {
      return Promise.all(keys
        .filter(key =>  key !== dynamicCacheName)
        .map(key => caches.delete(key))
      );
    })
  );
});
// fetch event
self.addEventListener('fetch', evt => {
  evt.respondWith(
    caches.match(evt.request).then(cacheRes => {
      return cacheRes || fetch(evt.request).then(fetchRes => {
        return caches.open(dynamicCacheName).then(cache => {
          cache.put(evt.request.url, fetchRes.clone());
          return fetchRes;
        })
      });
    })
  );
});

[Explosion-Scratch]

(also sorry for making so many issues)

[Explosion-Scratch]

Not sure why the service worker isn't registering, on the website, even though VitePWA is supposed to be generating it. I did make a PR (#70) that adds all the assets in the public folder to the service worker