add scroll-y lock on search

src/pages/Events/EventsPage.module.css

@@ -34,6 +34,7 @@
     padding: 5px 5px 5px 5px;
 }
 
+
 .searchBarOverlay {
     position: fixed;
     top: 0;
@@ -41,9 +42,9 @@
     width: 100%;
     height: 100%;
     z-index: 100;
+    background-color: rgba(0, 0, 0, 0.3);
+    backdrop-filter: blur(4px);
 }
-
-
 .searchBarContainer{
     display: flex;
     justify-content: center;