## Summary of the Pull Request
Ensures that the background image path is displayed in the settings UI.
## References
One of the items on #11353
## PR Checklist
* [x] Closes#11541
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
## Validation Steps Performed
Set the background image path and saw that it was displayed in the settings UI.
## Validation Steps Performed
Clicked around, validated that settings still behave the same (as far as
I can tell with my limited terminal configuration expertise)
Closes#10387