Merge branch 'bugfix/#604-modify-to-display-unread-message-count' into 'release_sp3'

#42561 未読メッセージ1000件目を送信すると、未読数が「1000」になる

See merge request !77

public_new/js/chat-ui.js

@@ -1100,6 +1100,10 @@ CHAT_UI.refreshRoomList = function(roomType) {
         if (room.chatRoomName == "") {
             room.chatRoomName = attendUserName.join(', ');
         }
+        var unreadMessageCount = room.unreadCount == 0 ? '' : room.unreadCount;
+        if (unreadMessageCount > 999) {
+            unreadMessageCount = '999+';
+        }
         let html = Mustache.render(template, {
             thumbnailCount: thumbnailCount,
             roomName: room.chatRoomName,
@@ -1107,7 +1111,7 @@ CHAT_UI.refreshRoomList = function(roomType) {
             profileImage: room.profileImagePath,
             lastMessage: displayMsg ,
             time: room.insertDate ? CHAT_UTIL.formatDate(room.insertDate).createdAt : '',
-            unreadMsgCnt: room.unreadCount == 0 ? '' : room.unreadCount,
+            unreadMsgCnt: unreadMessageCount,
             userCnt: room.attendUsers.length + 1,
             attendUsers: room.attendUsers
         });