Fix bugs related to Web FTP

[geunwoonoh]

We need to fix the following bugs in the Web FTP functionality:

• The system does not support Korean characters in file paths.
• Downloading large ZIP files is failing.
• Downloading specific files causes a panic.
• The system is unable to load settings for the FtpClient.
• An error occurs during Alpamon installation due to the requirement to select Yes/No.