fix: improve realtime chat state feedback

fix: separate management errors from global chat-list failures

feat: show connecting and typing states in chat subtitle

android/app/src/main/res/values-ru/strings.xml

@@ -135,6 +135,7 @@
     <string name="chat_open_item_failed">Не удалось открыть элемент</string>
     <string name="chat_status_online">в сети</string>
     <string name="chat_status_last_seen_recently">был(а) недавно</string>
+    <string name="chat_status_typing">печатает…</string>
     <string name="chat_type_group">группа</string>
     <string name="chat_type_channel">канал</string>
     <string name="chat_info_tab_media">Медиа</string>