fix(create-svelte): Add $service-worker to paths in tsconfig.json

[Liamolucko]

Adds $service-worker to paths in the template's tsconfig.json so service workers can be properly type-checked. I also had to add noEmit because TypeScript was complaining about overwriting .svelte/build/runtime/service-worker.

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[dummdidumm]

Thanks! I removed the emit line though because I cannot reproduce this and it seems like a non-ideal solution to just flip this flag.