feat: Refactor blog components and add pagination

utils/slugify.ts

@@ -0,0 +1,20 @@
+/**
+ * Simple slugify helper (Vietnamese-friendly) to match CMS behavior:
+ * - lowercased
+ * - diacritics removed (NFD)
+ * - "đ" -> "d"
+ * - strict: keep [a-z0-9 -] only, then collapse spaces/hyphens
+ */
+export function toSlug(input: string): string {
+  return (input || "")
+    .trim()
+    .toLowerCase()
+    .normalize("NFD")
+    .replace(/[\u0300-\u036f]/g, "")
+    .replace(/đ/g, "d")
+    .replace(/[^a-z0-9\s-]/g, "")
+    .replace(/\s+/g, "-")
+    .replace(/-+/g, "-")
+    .replace(/^-|-$/g, "");
+}
+