Deduplicate preact version in builds and development

[lemonmade]

Had very annoying HMR issues caused by preact being duplicated after an upgrade. We should be able to resolve to a single version... somehow. I think Vite does this https://vitejs.dev/config/#resolve-dedupe

[lemonmade]

I added the deduping, but adding Preact and friends to the list didn't seem to work for in the Quilt monorepo (added, reverted). Going to leave the config option around, but I will need to work on helping avoid duplicates some other way.