feat!: add SvelteKit 2 support

[userquin]

No description provided.

[dominikg]

sveltekit 2 requires vite5, sveltekit 1 requires vite4

[userquin]

It is a dev dependency, Vite 4 and Vite 5 don't change plugin types, it should be compatible with Rollup 3 and 4.

I've tested this PR also with kit 1 and tests green:

• extract example from main branch to a new folder
• remove @vite-pwa/sveltekit from dev dependencies (using workspace protocol)
• add vite 4.5.1, vite-plugin-pwa, workbox-window, workbox-precaching and workbox-routing as dev dependencies
• pnpm build && pnpm pack in this PR, copy tgz to the new project folder
• install the plugin using file protocol: pnpm add -D ./vite-pwa-sveltekit-0.2.10.tgz
• tests green: pnpm test

https://github.com/userquin/sveltekit1-with-kit2pwa-plugin

[userquin]

Navigation seems to be broken when changing the url, for example (even with export const trailingSlash = 'never'; in layout):

• navigate to /about/ using the link header (the link is to /about)
• remove the trailing slash and press enter, kit should redirect to /about/

Previous test with disable: true in PWA configuration.

Maybe we need a breaking change and update the logic, we should include trailing and no trailing variant per route (html page).

I'll try to run the migration...

[userquin]

SvelteKit 2.0.1 fixes trailing slash: added Playwright offline + trailing slash test