feat: add iPhone 11 models to DeviceDescriptors

[yomed]

Hi, I noticed the latest iPhone models were missing. I got the width, height, deviceScaleFactor from this site: https://yesviz.com/devices.php

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[yomed]

@googlebot I signed it!

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[whalderman]

I don't know if the userAgents need to be updated to the latest supported version. I know they aren't terribly important, so if up-to-date user agents are not necessary, this'll work fine.