[Form] Document Select cannot select files across different directories

[ThuF]

Description

When the Multiple option is enabled in the Document Select component, users are restricted to selecting files only within the currently opened directory.

Current Behavior:

• Selecting files from one directory works
• Navigating to another directory resets or ignores previous selections
• Cross-directory selection is not possible

Expected Behavior:

• Users should be able to:
  • Navigate across directories
  • Select files from multiple locations
  • Retain all selected files regardless of directory

Suggested Improvements:

• Provide a summary view of all selected files