fix: Receipt row not auto updating

lib/pages/chat/seen_by_row.dart

@@ -14,8 +14,19 @@ class SeenByRow extends StatelessWidget {
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
 
-    final seenByUsers = controller.room.getSeenByUsers(controller.timeline!);
     const maxAvatars = 7;
+    return StreamBuilder(
+      stream: controller.room.client.onSync.stream.where(
+        (syncUpdate) =>
+            syncUpdate.rooms?.join?[controller.room.id]?.ephemeral?.any(
+              (ephemeral) => ephemeral.type == 'm.receipt',
+            ) ??
+            false,
+      ),
+      builder: (context, asyncSnapshot) {
+        final seenByUsers = controller.room.getSeenByUsers(
+          controller.timeline!,
+        );
         return Container(
           width: double.infinity,
           alignment: Alignment.center,
@@ -67,5 +78,7 @@ class SeenByRow extends StatelessWidget {
             ),
           ),
         );
+      },
+    );
   }
 }