refactor: Update editable prop in MessagesPage component

src/frontend/src/pages/SettingsPage/pages/messagesPage/index.tsx

@@ -57,7 +57,7 @@ export default function MessagesPage() {
           onCellEditRequest={(event) => {
             handleUpdateMessage(event);
           }}
-          editable={["Sender Name", "Message", "Text"]}
+          editable={[{field:"text",onUpdate:handleUpdateMessage, editableCell:false}]}
           overlayNoRowsTemplate="No data available"
           onSelectionChanged={(event: SelectionChangedEvent) => {
             setSelectedRows(