ErsatzTV.Tests references NUnit, NUnit3TestAdapter and Shouldly, but not
Microsoft.NET.Test.Sdk. Without it `dotnet test` builds the project and
then discovers nothing in it, so the two MultiSelectBase tests added
alongside the project in #2738 have never actually run.
Adding the package lets them execute; both pass, and a solution-wide
`dotnet test` still reports no failures.
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
* Add select all controls to media lists
* Refine select-all helper and add coverage
* Adjust select-all button alignment
* Tighten select-all helper semantics
* Allow tests to access internal members
* Rename select-all helper and avoid shift tracking
* Simplify select-all reset helper
* Keep pager centered and move select-all right
* Add missing div
* create test project for main app; move and rename new tests
* remove core => main app reference
* cleanup unused imports
* Fix button behavior when the screen is small
* update changelog
---------
Co-authored-by: Jason Dove <1695733+jasongdove@users.noreply.github.com>
Ministorm3
Jason Dove
Jon Crall