Handle errors properly from the API

reminder-dashboard/src/components/Reminder/ButtonRow/EditButtonRow.tsx

@@ -28,12 +28,10 @@ export const EditButtonRow = () => {
                 clearTimeout(iconFlashTimeout.current);
             }
 
-            if (response.data.errors.length > 0) {
+            if (response.data.error) {
                 setRecentlySaved(false);
 
-                for (const error of response.data.errors) {
-                    flash({ message: error, type: "error" });
-                }
+                flash({ message: response.data.error, type: "error" });
             } else {
                 setRecentlySaved(true);