Add property data for scroll triggered animations

[chrisdavidmills]

Description

Chrome 146 adds support for scroll-driven animations; see https://chromestatus.com/feature/5181996801982464.

This PR adds property and type data for the new functionality.

Motivation

Additional details

Related issues and pull requests

[dipikabh]

Can you add the spec links for these properties to PR description? Then I'll have something to compare this data with.

[chrisdavidmills]

Can you add the spec links for these properties to PR description? Then I'll have something to compare this data with.

I've shared my scroll-triggered animations research doc with you, which contains all of the exact spec URLs, plus some other useful info besides.

[dipikabh]

I've shared my scroll-triggered animations research doc with you, which contains all of the exact spec URLs, plus some other useful info besides.

Awesome, thanks!

[dipikabh]

Looks great! Thank you

[tristantheb]

If you want to take advantage of this opportunity to add the French translation at the same time, here it is: "fr": "Une liste dont chaque élément est soit le mot-clé <code>none</code>, le mot-clé <code>auto</code>, un identifiant ({{CSSxRef(\"&lt;ident>\")}}), sensible à la casse, une fonction calculée {{CSSxRef(\"animation-timeline/scroll\")}} ou une fonction calculée {{CSSxRef(\"animation-timeline/view\")}}." ;)

[chrisdavidmills]

If you want to take advantage of this opportunity to add the French translation at the same time, here it is: "fr": "Une liste dont chaque élément est soit le mot-clé <code>none</code>, le mot-clé <code>auto</code>, un identifiant ({{CSSxRef(\"&lt;ident>\")}}), sensible à la casse, une fonction calculée {{CSSxRef(\"animation-timeline/scroll\")}} ou une fonction calculée {{CSSxRef(\"animation-timeline/view\")}}." ;)

@tristantheb I would love to! Added in my next commit. Merci!