initial commit

frontend/src/hooks/useLocalStorage.jsx

@@ -0,0 +1,28 @@
+import React, { useEffect, useState } from 'react';
+
+const useLocalStorage = (key, defaultValue) => {
+  const localKey = key;
+
+  const [value, setValue] = useState(() => {
+    try {
+      const item = localStorage.getItem(localKey);
+      return item ? JSON.parse(item) : defaultValue;
+    } catch (error) {
+      console.error(`Error reading key "${localKey}":`, error);
+    }
+
+    return defaultValue;
+  });
+
+  useEffect(() => {
+    try {
+      localStorage.setItem(localKey, JSON.stringify(value));
+    } catch (error) {
+      console.error(`Error saving setting: ${localKey}:`, error);
+    }
+  }, [localKey, value]);
+
+  return [value, setValue];
+};
+
+export default useLocalStorage;