fix chat unread badge

src/components/chat/chat.scss

@@ -98,10 +98,10 @@
     .unread-message-count {
       font-size: 0.8em;
       left: 50%;
-      transform: translate(-50%, 0);
-      border-radius: 100%;
       margin-top: -1rem;
-      padding: 0;
+      padding: 0.1em;
+      border-radius: 50px;
+      position: absolute;
     }
 
     .chat-loading-error {