HTML pages added to cache via manifest attribute still contain the hash fragment of the href

[mfulton26]

Work was done in #17 to remove hash part of URL from request URL and client URL but this same hash removal isn't being done for HTML pages added to the cache via the manifest attribute.

e.g.

sw-appcache-behavior/packages/appcache-polyfill-window/index.ts

Lines 202 to 214 in f7dc78d

	async function updateManifestAssociationForCurrentPage(
	manifestUrl: string,
	hash: string,
	) {
	const pageURLToManifestURL: PageURLToManifestURL =
	await storage.get('PageURLToManifestURL');
	pageURLToManifestURL[location.href] = manifestUrl;
	await Promise.all([
	storage.set('PageURLToManifestURL', pageURLToManifestURL),
	addToCache(hash, [location.href]),
	]);
	}

There are likely other places that need to be updated too (e.g. in the service worker fetch).

This causes apps that load from the network with a hash fragment to not being able to retrieved from cache due to mismatching key. My team is attempting to work around this for now by changing our root URL to not have a hash fragment but this may not work in other applications or long term for my team. Thanks!