feat-homescreen - Add ModernCardsOnMyMediaRow setting support to Moonbase

[mattsigal]

Pull Request

Summary

Adds support for the new modernCardsOnMyMediaRow user preference across Moonbase DTO profiles, admin User Defaults UI, and settings synchronization for Jellyfin and Emby plugins.

Related Issues

Link related issues or tickets separated by commas.

• Closes # [UI] Vertical display of libraries - display text cut off Moonfin-Core#354
• Fixes #
• Related to # feat-homescreen - Add toggle and mirrored sizing for Modern cards on My Media row Moonfin-Core#1462 (Core)
• Related to # feat-homescreen - Add toggle and mirrored sizing for Modern cards on My Media row Smart-TV#409 (Smart-TV)
• Related to # feat-homescreen - Add toggle and mirrored sizing for Modern cards on My Media row Roku#263 (Roku)

Type of Change

• Bug fix
• New feature
• Refactor
• Performance improvement
• API / endpoint change
• Settings schema change
• Documentation update
• Build/CI change
• Other (describe):

Area

• Settings sync / profiles
• Admin defaults / config page
• Ratings (MDBList / TMDB)
• Notifications / Push (FCM / relay)
• Seerr integration
• Games / Emulators
• Custom home rows
• Web Client (Go to Moonfin-Core repo)
• Other / shared

Changes Made

List the key changes included in this PR.

• Added ModernCardsOnMyMediaRow (bool?) to MoonfinSettingsProfile.cs for both Jellyfin and Emby plugins.
• Added "Modern cards on My Media row" dropdown selector and descriptive helper text to configPage.html under Default User Settings.
• Bound modernCardsOnMyMediaRow in moonfin.js for profile load and save routines.

Client Impact

Does this need matching changes in a client repo (Core, Smart-TV, Roku)?

• No client changes needed
• Companion client PR(s) required, linked here:
  • feat-homescreen - Add toggle and mirrored sizing for Modern cards on My Media row Moonfin-Core#1462 (Core)
  • feat-homescreen - Add toggle and mirrored sizing for Modern cards on My Media row Smart-TV#409 (Smart-TV)
  • feat-homescreen - Add toggle and mirrored sizing for Modern cards on My Media row Roku#263 (Roku)
• New setting keys added. List each key and confirm it matches the client key exactly, including casing:
  • modernCardsOnMyMediaRow (boolean)

Compatibility

• Change to the settings profile is additive only, no renamed or removed properties
• New properties use the same type the client sends (a client bool maps to bool?, an int to int?)
• Migration added for any renamed or removed settings
• Older clients still work, unknown fields are ignored and no keys were removed

Testing

Describe how this change was tested.

• Built the plugin and deployed to a Jellyfin server
• Verified against a live client (which one:) Windows Desktop (core), Android TV (core), Smart-TV (webOS emulator)
• Manual testing completed
• Not tested (explain why):

Test Steps

1. Built release DLL and deployed to server.
2. Verified in Jellyfin Admin settings that default dropdown displays with choices "Not set", "Yes", and "No".
3. Toggled setting and verified round-trip saving and persistence.

Screenshots (if applicable)

Include config page screenshots or request/response samples where relevant.

Checklist

• Code builds successfully
• Code follows project style and conventions
• No unnecessary commented-out code
• No new warnings introduced
• Any new setting keys match the client-side keys exactly

[github-actions]

Build Successful

Both plugins compiled against .NET 8, and both test suites passed.

Property	Value
Commit	eec3530
Jellyfin ABI	10.10.0.0
Emby version	2.2.0.0
Workflow	Build #384