fix: scroll within transcript card instead of entire page

[NotYuSheng]

Changed scrollIntoView behavior from 'block: center' to 'block: nearest' to ensure active transcript segments scroll within the .transcript-content container rather than scrolling the entire page.

[gemini-code-assist]

Summary of Changes

Hello @NotYuSheng, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request resolves an issue where activating a transcript segment would cause the entire page to scroll. By adjusting the scrollIntoView method's block option, the change ensures that scrolling is now contained within the transcript card, providing a more focused and less disruptive user experience.

Highlights

• Transcript Scrolling Behavior: Modified the scrollIntoView behavior for active transcript segments to use block: 'nearest' instead of block: 'center'.

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[gemini-code-assist]

Code Review

This pull request correctly fixes an issue with the page scrolling when an active transcript segment comes into view. Changing the scrollIntoView option block to 'nearest' is the right approach. While reviewing, I noticed an opportunity to improve accessibility by respecting the user's preference for reduced motion. I've added a suggestion to conditionally disable smooth scrolling, which can be problematic for some users. Overall, a good fix with a suggested enhancement.