Доработать UI уведомлений

shine-UI/js/pages/chat-view.js

@@ -1,4 +1,5 @@
 import { renderHeader } from '../components/header.js';
+import { attachScrollToBottomButton } from '../components/scroll-to-bottom-button.js';
 import { directMessages } from '../mock-data.js';
 import {
   addAppLogEntry,
@@ -906,6 +907,9 @@ export function render({ navigate, route, chrome }) {
 
   const wrap = document.createElement('div');
   wrap.className = 'chat-wrap dm-chat-wrap';
+  const scrollToBottomControl = attachScrollToBottomButton({
+    scrollContainer: () => boundScrollContainer || wrap,
+  });
 
   const historyLoader = document.createElement('div');
   historyLoader.className = 'dm-history-loader';
@@ -1559,6 +1563,7 @@ export function render({ navigate, route, chrome }) {
     void loadHistoryPage({ preserveScroll: true });
   });
   screen.cleanup = () => {
+    scrollToBottomControl.cleanup();
     hideUnreadSeparator({ rerender: false });
     stopAllTwemojiAnimations();
     window.removeEventListener('shine-chat-messages-updated', handleIncomingChatRefresh);