Created by: ianschmitz
Closes #5508 (closed).
This PR automatically generates a tsconfig.json in the root of the project if it doesn't exist, when we determine that TypeScript is enabled on the project (when src/index.ts or src/index.tsx exists). We also validate the config to ensure that isolatedModules is set to true.
TODO:
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Sort out what to do with loader.d.ts -
Clean up project path reference when calling ts.parseJsonConfigFileContent()