Fix: Fixed issue where Git buttons were incorrectly shown in the status bar

[ferrariofilippo]

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: The Git panel remains in the status bar when the home page is displayed in dual-pane #12701

Validation
How did you test these changes?

• Did you build the app and test your changes?
• Did you check for accessibility? You can use Accessibility Insights for this.
• 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? (Steps tkane from the issue)
  1. Start dual-pane mode.
  2. Open a Git directory and the home page.
  3. Focus the home page.

[yaira2]

LGTM