Backport Bugzilla 1834307 and hide smooth-scroll UX
links - yay FF115+ [1832598](https://bugzilla.mozilla.org/show_bug.cgi?id=1832598) Default enable smooth scrolls when resisting fingerprinting - not verified [1834307](https://bugzilla.mozilla.org/show_bug.cgi?id=1834307) Smooth scrolls are disabled if the user prefers-reduced-motion regardless of fingerprint resistance - you need to restart the browser for changes to take effect - test (until I add it to TZP): https://dlrobertson.com/examples/scrollinto-view-scrollend.html
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