Enhancement (Card Browser): Tap and drag scrollbar

[ShaanNarendran]

Purpose / Description

This change lets the user tap anywhere on the scrollbar to skip to that position in the list and continue dragging.

Fixes

• Fixes scrollbar should jump to clicked location #18520

How Has This Been Tested?

Screen_recording_20251230_183527.webm

Checklist

Please, go through these checks before submitting the PR.

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• UI Changes: You have tested your change using the Google Accessibility Scanner