* fix: add mockery v2 to nix flake pkgs
* feat: add requests for generating wifi qr codes as png files in /tmp, and to delete them later. only supports NetworkManager backend for now.
* feat: add modal for sharing wifi via qr code and saving the code as png file.
* fix: uncomment QR code file deletion
* network: light refactor and cleanup for QR code generation
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Co-authored-by: bbedward <bbedward@gmail.com>
