Feature Request: Add QR Overlay support

#PR provided: https://github.com/netbox-community/netbox-qrcode/pull/129
I have submited a PR to add image overlays QR codes generated by the plugin.

This allows for branded QR codes that still successfully scan.

<img width="388" height="249" alt="Image" src="https://github.com/user-attachments/assets/d498e74e-1a9d-4305-9b52-4dd4dc2ec76b" />