Printer QR code#126

Similar to Filament Management. Ability to print a QR code for a printer to easily identify the printer (go to the printer page) when using many printers.

I just wanted to make the same suggestion :)

So when selecting a printer, show its QR code which we can print using a label writer etc.

THen in the app, if I stand before a printer, scan de QR code to load its settings page.

Plus AMS codes! So for example, scan the code on an AMS and its tied to a specific printer in SP. That way you can show exactly which spools are in which AMS unit. So if there is an issue with a certain unit, say crimped ptfe not allowing filament to feed, you can know that all those spools are unavailable for use.