File picker wouldn't trigger if `@` is not the last non-space character

Summary

The file picker wouldn't trigger if @ if not the last non-space character:

• Working :
  
• Not working :
  

Expected Behavior

File picker would trigger even if @ if not the last non-space character

Actual Behavior

File picker wouldn't trigger if @ if not the last non-space character

Steps to reproduce the issue

1. Open cmd
2. Type something @
3. Observes that the file picker would open properly
   
4. Clear the prompt
5. Type something
6. Put your cursor before the first character (s)
7. Prepend a whitespace ( )
8. Put your cursor before the first character ( )
9. Type @
10. Observe that the file picker would not open
    

Command Code Version

1.15.0

Operating System

Linux

Terminal/IDE

Ghostty 1.3.1

Shell

nushell

Session file (optional)

No response

Fix prompt (optional)

No response

Additional context

No response