Types from `*.d.ts` files are not parsed in node_modules

If an installed package would deliver type informations with d.ts files, it won't parse these files and interface informations are missing in the props.

It could be fixed in the makeFsImporter.ts file with a simple addition:

if (!nextFile) {
      // Customization: try to read from a "d.ts" file instead, if it exists
      if (resolvedSource.includes("node_modules")) {
        const dtsPath = resolvedSource.replace(".js", ".d.ts");
        if (fs.existsSync(dtsPath)) {
          resolvedSource = dtsPath;
        }
      }
      // Customization: end

      // Read and parse the code
      const src = fs.readFileSync(resolvedSource, "utf8");

      nextFile = file.parse(src, resolvedSource);

      parseCache.set(resolvedSource, nextFile);
}

But i didn't want to make another pull request because i'm not sure if this is a nice way to solve it.

Start in makeFsImporter.ts and trace how unresolved files under node_modules are read and parsed. Check the existing handling around resolvedSource and parseCache, then verify that installed packages exposing .d.ts files produce the expected interface information in component props.