Update to NextJs 15 slug params

Function like this

export default async function Docs({
  params,
}: {
  params: { docSlug: string };
}) {
  const content = await fs.readFile(
    path.join(process.cwd(), "src/docs", `${params.docSlug}.mdx`),
    "utf-8"
  );
}

On using slug params got error

Type error: Type '{ params: { docSlug: string; }; }' does not satisfy the constraint 'PageProps'. Types of property 'params' are incompatible.

Easy fix based on upgrade guide https://nextjs.org/docs/app/building-your-application/upgrading/version-15#async-request-apis-breaking-change

export default async function Docs({
  params,
}: {
  params: Promise<{ docSlug: string }>;
}) {
  const { docSlug } = await params;
  const content = await fs.readFile(
    path.join(process.cwd(), "src/docs", `${docSlug}.mdx`),
    "utf-8"
  );
}