add library backdrop

[jmawet]

Pull Request

Summary

Add backdrop to library view to match core

Controlled by the same toggle that syncs with moonbase

Related Issues

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• Closes #
• Fixes #
• Related to Add server profile sync mappings for PR 217/218 fields and Implementations #199 Library settings fixes #211

Type of Change

• Bug fix
• New feature
• Refactor
• Performance improvement
• UI/UX update
• Documentation update
• Build/CI change
• Other (describe):

Changes Made

List the key changes included in this PR.

• I basically just copied backdrop stuff from home screen until it worked lol

Testing

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• Tested on physical Roku device
• Tested via sideload
• Manual testing completed
• Not tested (explain why):

Test Steps

Screenshots (if applicable)

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Checklist

• Code builds successfully
• Code follows project style and conventions
• No unnecessary commented-out code
• No new warnings introduced