Device detection and classification improvements

PingKit now identifies more of the devices on your network, and gets their type right more often.

• Recent Mac models, iPhone, iPad, Apple TV and HomePod are identified by model.
• Smart TVs, streaming boxes, speakers, printers and smart home accessories are detected more reliably.
• Phones, tablets and laptops now appear under Family instead of Work.
• Far fewer devices are left as Unknown.

Plus bug fixes and reliability improvements throughout.