feat(snippets): introduce reusable code chunks section, add cms support, and fix navbar turkish characters

content/snippets/use-local-storage.md

@@ -0,0 +1,24 @@
+---
+title: "useLocalStorage Hook"
+language: "typescript"
+category: "React Hooks"
+description: "localStorage ile senkronize çalışan bir React hook'u."
+---
+
+```typescript
+import { useState, useEffect } from "react";
+
+export function useLocalStorage<T>(key: string, initialValue: T) {
+  const [value, setValue] = useState<T>(() => {
+    if (typeof window === "undefined") return initialValue;
+    const stored = localStorage.getItem(key);
+    return stored ? JSON.parse(stored) : initialValue;
+  });
+
+  useEffect(() => {
+    localStorage.setItem(key, JSON.stringify(value));
+  }, [key, value]);
+
+  return [value, setValue] as const;
+}
+```