Rename exported color.d.ts and react-types.d.ts types

[mimarz]

Rename this to names without d.ts as is most common in libraries that export types you can use in your tsconfig.

Investigate possible naming conventions and update docs.

Examples from other packages:

    "types": [
      "@testing-library/jest-dom",
      "vitest/globals",
    ]

/// <reference types="next" />
/// <reference types="next/image-types/global" />

// NOTE: This file should not be edited
// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.