[w3c/screen-orientation] Angle not consistently implemented (Issue #247)

Over on WebKit, we got a report that `.angle` (and `.type`) are not reported in an interoperable manner:

Using https://krpano.com/ios/bugs/ios164-screen-orientation/ and turning the device clockwise. 

Firefox Nightly 113 Android 13
screen.orientation.angle: 270
screen.orientation.type: landscape-primary

Chrome Canary 113 Android 13
screen.orientation.angle: 270
screen.orientation.type: landscape-secondary

Safari 16.4 iOS 16.4
screen.orientation.angle: 90
screen.orientation.type: landscape-primary

The spec and the tests agree with Webkit, but we may have a web interop issue at hand. 

Should we change the spec to use counter clockwise values instead? 

@makotokato, wdyt? 


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