feat(create-app): update svelte-ts template to use @tsconfig/svelte a…

[dominikg]

…nd svelte-check

Description

follow the official svelte ts template and use @tsconfig/svelte + svelte-check

sveltejs/template@f92a0a4
https://github.com/tsconfig/bases/blob/master/bases/svelte.json

Additional context

should some of the remaining compilerOptions be moved to the base or removed entirely?
cc @dummdidumm @GrygrFlzr

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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