add searchEvents utils function to call the events/search route

src/utils/searchEvents.js

@@ -0,0 +1,22 @@
+export default async function searchEvents(query) {
+    try {
+        const encodedQuery = encodeURIComponent(query);
+        const response = await fetch(
+            `http://localhost:80/api/events/search?query=${encodedQuery}`,
+            {
+                method: 'GET',
+                credentials: 'include',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'Accept': 'application/json'
+                }
+            }
+        );
+        const data = await response.json();
+        return data.hits.map(hit => hit.document);
+
+    } catch (err) {
+        console.error("Erreur :", err);
+        return null;
+    }
+}