revert: 删除移动端语言入口

src/views/Conversations/Online/ConversationsList.jsx

@@ -328,6 +328,13 @@ const Conversations = () => {
           <Button onClick={toggleClosedConversationsList} icon={activeList ? '🗂' : '📌'} type='text' />
         </Tooltip>
       }
+      {mobile && (
+        <AudioTwoTone
+          onClick={() => {
+            navigate(`/callcenter/call`)
+          }}
+        />
+      )}
       </div>
       <ChatListFilter key='chat-list-filter'
         onFilterChange={(d) => {