Add LiteralToPrimitiveDeep Type

[alvis]

This PR introduces a new utility type called LiteralToPrimitiveDeep, which aims to simplify the handling of data from a json file.

For example, if you want to pass a tsconfig to a function expecting a TsConfigJSON type, then you have to either import the expected type and cast the data to it, or simply cast the data to any.

/* function.ts */
import type { TsConfigJson } from 'type-fest';

export function doSomethingWithTSConfig(config: LiteralToPrimitiveDeep<TsConfigJson>) { ... }

/* another.ts */
import tsconfig from 'path/to/tsconfig.json';

// no casting is needed to pass the type check
doSomethingWithTSConfig(tsconfig);

// if LiteralToPrimitiveDeep is not used, you need to cast the imported data like this: 
doSomethingWithTSConfig(tsconfig as TsConfigJson);
doSomethingWithTSConfig(tsconfig as any);

[sindresorhus]

Thanks for contributing. Make sure you adhere to https://github.com/sindresorhus/type-fest/blob/main/.github/contributing.md

[alvis]

@sindresorhus Sorry for missed the code style. They are corrected.

[alfiomy]

تمام

[alvis]

@sindresorhus Documentation should be much clearer now :)

[sindresorhus]

Thanks :)