- Add pyproject.toml for pytest configuration and update background image references
- Introduced a new pyproject.toml file to configure pytest with specified options.
- Changed background image references from JPEG to PNG format in the debloat_apply_background and debloat_download_scripts modules.
- Removed deprecated background.jpg and spinner.gif files, replacing them with background.png.
Added new test files for configuration and download scripts to ensure functionality.