fix: show last sender avatar in streams list

js/src/features/particles/particle-list-view.tsx

@@ -132,8 +132,13 @@ function StreamRow({
         return getInitials(otherEmail);
       }
     }
+
+    if (latestChild) {
+      return getInitials(latestChild.created_by_email);
+    }
+
     return particle.properties.name.slice(0, 2).toUpperCase();
-  }, [isDM, particle.visible_to, particle.properties.name, userEmail]);
+  }, [isDM, particle.visible_to, particle.properties.name, userEmail, latestChild]);
 
   const isUnseen = useMemo(() => {
     if (!latestChild) return false;