feat: integrate Cloudinary image upload, Instagram Feed, and fix Next.js warnings

app/api/cloudinary/route.ts

@@ -0,0 +1,20 @@
+import { v2 as cloudinary } from "cloudinary";
+import { NextResponse } from "next/server";
+
+cloudinary.config({
+  cloud_name: process.env.NEXT_PUBLIC_CLOUDINARY_CLOUD_NAME,
+  api_key: process.env.CLOUDINARY_API_KEY,
+  api_secret: process.env.CLOUDINARY_API_SECRET,
+});
+
+export async function POST(request: Request) {
+  const body = await request.json();
+  const { paramsToSign } = body;
+
+  const signature = cloudinary.utils.api_sign_request(
+    paramsToSign,
+    process.env.CLOUDINARY_API_SECRET as string
+  );
+
+  return NextResponse.json({ signature });
+}