Fix notification card width constraint

styles/22-patterns-object-card.css

@@ -79,6 +79,8 @@
 
 .sg-object-card--notification {
   width: var(--layout-notification-card-width);
+  min-width: 0;
+  max-width: none;
   height: auto;
   --surface-object-card-lower-segment: var(--surface-notification-card-lower-segment);
 }