Update ManageTask.module.css

Author: Imggaggu

frontend/src/pages/admin/ManageTask.module.css

@@ -46,6 +46,8 @@
   display: flex;
   justify-content: center;
   align-items: center;
+  overflow-y: auto;
+  scrollbar-width: none;
 }
 .modal {
   background-color: #333;