v1.9.15

• Fix internal bugs
• Fix Recycle bin issue
• Fix path.currentdirectory
• Fix the scroll indicator
• New sys.expand function to expand environment variables
• Extend command property
  [CMD-LINE, CMD-PROMPT] for Command Prompt.
  [CMD-POWERSHELL, CMD-PS] for PowerShell.
  [CMD-PWSH] for PowerShell 7.
  [CMD-SHELL, CMD-EXPLORER] for Explorer.