Scroll area active sparkle

[Duncid]

Description

• Updating scrollArea component with the capacity to customize style when scrolling

Tests

n/a

Risk

n/a

Deploy Plan

merge & deploy

[Duncid]

@JulesBelveze created a Sparkle focused PR here.

I'm not sure how to do:

Basically having the state set to active only when the user is scrolling

But feel free to step in!

[JulesBelveze]

@Duncid I've picked up your styling and port them this PR #10544. Let me know what you think, and feel free to tweak 👌🏼