Add Arjmand Pharmacy Next.js homepage.

Initial RTL storefront with header, slider, product sections, and local image assets.

Co-authored-by: Cursor <cursoragent@cursor.com>

postcss.config.mjs

@@ -0,0 +1,7 @@
+const config = {
+  plugins: {
+    "@tailwindcss/postcss": {},
+  },
+};
+
+export default config;