Add Safari versions for SVGDescElement API (#8542)
Add Safari versions for SVGDescElement API (#8542)

This PR adds real values for Safari (Desktop and iOS/iPadOS) for the `SVGDescElement` API, based upon manual testing.

Test Code Used: `document.createElementNS('http://www.w3.org/2000/svg', 'desc')`
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data