[Nightly] Update v0.7.2192a

This update focuses on usability improvements in the UI.

• The default color of remote connection in the window bar has changed. This change will not affect players who use their own theme.
  
  
• When root user privileges are obtained, the glow of the window will change to red. This also applies to visual programs launched from a root terminal, since privileges are inherited.
  This color can be changed from Menu > Preferences > Appearance
  
  
• Updated the icons shown in FileExplorer to reflect the file type.
  
  
• CodeEditor now saves files with the extension ".src" by default.
  
  
• When double clicking from FileExplorer/Desktop in a file of type ".src" it opens automatically in the program CodeEditor.
  
  
• Notepad and CodeEditor allow to select existing files from the saving dialog, avoiding having to write the name manually whenever you want to overwrite an existing file.
  
  
• When Notepad and CodeEditor are closing, a warning is displayed if there are changes without saving, allowing the file to be saved at that moment.
  
  
• Fixed bug in FileExplorer that caused the error message "Can not open. Binary file" when launching a terminal type program. Now FileExplorer launches the program from a terminal.
  
  
• Performance improvements on client side.
  
  
• Fixed bug in shell.scp_upload and scp causing the terminal not to be released after copying.
  
  
• Minor bugs fixes.