Windows Firewall blocking check v4.04.48

improvement

• We have added a notification process to detect when Chat&Messenger is blocked by the "Windows Firewall" and guide the user to resolve the issue on the FAQ page below.
  Frequently Asked Questions - Unblocking Windows Firewall
  If blocked by the Windows Firewall, communication will be unstable.
  It is easy to understand if communication is definitely not possible, but some users are not able to be recognized.
  Also, the OS specifications are unclear in many areas, such as "cancel" being treated as a block.
  If you blocked once in the past, that setting will remain.
• Improvements around message thread display
• Improvements to automatic version updates