Fix: Fixed crash when launching from CMD with "Files"

[hishitetsu]

Resolved / Related Issues

• Were these changes approved in an issue or discussion with the project maintainers? In order to prevent extra work, feature requests and changes to the codebase must be approved before the pull request will be reviewed. This prevents extra work for the contributors and maintainers.
  Closes Bug: Launching first instance of Files with arguments doesn't work anymore #13019

Validation
How did you test these changes?

• Did you build the app and test your changes?
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• Did you remove any strings from the en-us resource file?
  • Did you search the solution to see if the string is still being used?
• Did you implement any design changes to an existing feature?
  • Was this change approved?
• Are there any other steps that were used to validate these changes?
  Launch the app from CMD with "files C:". You will see the app launches successfully.

[yaira2]

LGTM

[pierrishm1987]

Great work