Don't include baseUrl in generated tsconfig.json

[Rich-Harris]

Describe the problem

Honestly I don't really have the context for all these, I'm just noting that we had planned to change them in v2 for whatever reason:

kit/packages/kit/src/core/sync/write_tsconfig.js

Line 50 in d7ba3bf

// TODO(v2): never include base URL, and skip the check below

kit/packages/kit/src/core/sync/write_tsconfig.js

Lines 94 to 95 in d7ba3bf

	// TODO(v2): find a better way to include all src files. We can't just use routes/lib only because
	// people might have other folders/files in src that they want included.

kit/packages/kit/src/core/sync/write_tsconfig.js

Line 142 in d7ba3bf

moduleResolution: 'node', // TODO change to "bundler" in SvelteKit v2

kit/packages/kit/src/core/sync/write_tsconfig.js

Line 147 in d7ba3bf

// TODO(v2): use the new flag verbatimModuleSyntax instead (requires support by Vite/Esbuild)

kit/packages/kit/src/core/sync/write_tsconfig.js

Line 199 in d7ba3bf

// TODO(v2): check needs to be adjusted when we remove the base path

Describe the proposed solution

^

Alternatives considered

No response

Importance

nice to have

Additional Information

No response