Integrate new icons

Thanks to the contribution of @Gtt1229 for making the new built-in icons

Icon	Name
	3dprinter-printing
	3dprinter-standby
	eufy-doorbell
	opnsense
	reolink-doorbell

What's Changed

• Added OPNsense, Reolink Doorbell, Eufy Doorbell, 3D Printer States Icons by @Gtt1229 in #439
• new icons by @elax46 in #440

New Contributors

• @Gtt1229 made their first contribution in #439

Full Changelog: 2023.6.0...2023.6.1