Feature: Added support for setting jfif files as the wallpaper

[MrFrawsty]

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 Feature: Add support for jfif files to be set as wallpaper #14527

Validation
How did you test these changes?

• Did you build the app and test your changes?

• Are there any other steps that were used to validate these changes?

  1. Open app
  2. Navigate to file with .jfif extension
  3. Right click, select set as wallpaper
  4. Verify desktop wallpaper was set
  5. Rotated both left and right, both work as expected

[MrFrawsty]

Since my initial PR it looks like there were 3 commits to the main repo so I updated my fork and resubmitted. Hopefully this resolves the merge not showing up in the main branch