fix: center the video player in the landscape mode

[rayworks]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @rayworks, 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 addresses an alignment issue with the video player, ensuring it is properly centered within its container. The change improves the visual presentation and user experience, especially when the device is in landscape orientation, by applying a more suitable layout composable for centering content.

Highlights

• Video Player Centering: The video player's layout has been updated to ensure it is correctly centered, particularly in landscape mode, by switching from a Column to a Box composable and utilizing Alignment.Center.

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[gemini-code-assist]

Code Review

This pull request addresses an issue with the video player not being centered correctly, particularly in landscape mode. The change from a Column to a Box with contentAlignment = Alignment.Center is the correct approach to achieve both horizontal and vertical centering. I have one suggestion to refine the implementation by applying the Scaffold's padding to the Box container, which is the standard practice and ensures correct layout behavior.