feat: add sitemap, tag for SEO

app/components/Header.jsx

@@ -13,6 +13,7 @@ function Header() {
     { name: 'چرا ما', id: 'why-aramland' },
     { name: 'دانلود', id: 'download' },
     { name: 'ارتباط با ما', id: 'footer' },
+    { name: 'بلاگ', id: 'blog' },
   ];
 
   const handleNavClick = (sectionId) => {
@@ -38,7 +39,13 @@ function Header() {
           {navigationItems.map((item) => (
             <button
               key={item.id}
-              onClick={() => handleNavClick(item.id)}
+              onClick={() =>{
+                  if (item.id === 'blog') {
+                    window.open('https://aramland.approagency.ir/blog/', '_blank');
+                  } else {
+                    handleNavClick(item.id);
+                  }
+              }}
               className="text-gray-600 hover:text-primary-500 font-medium transition-colors duration-200 relative group text-sm lg:text-base"
             >
               {item.name}