Refactor SQLite Database Provider

- Removed unused classes and files related to SQLite database provider, including SqliteDesignTimeJellyfinDbFactory, ModelBuilderExtensions, PragmaConnectionInterceptor, AssemblyInfo, SqliteDatabaseProvider, DateTimeKindValueConverter.
- Updated tests to remove dependencies on removed classes and adjusted mocking for configuration sections.
- Added Microsoft.EntityFrameworkCore.Sqlite package reference to test project.
- Improved string handling in tests for better consistency and clarity.
- Refactored logging methods in JellyfinApplicationFactory for better readability and maintainability.

tests/Jellyfin.Server.Implementations.Tests/Data/SqliteItemRepositoryTests.cs

@@ -36,11 +36,11 @@ namespace Jellyfin.Server.Implementations.Tests.Data
 
             var configSection = new Mock<IConfigurationSection>();
             configSection
-                .SetupGet(x => x[It.Is<string>(s => s == MediaBrowser.Controller.Extensions.ConfigurationExtensions.SqliteCacheSizeKey)])
+                .SetupGet(x => x[It.IsAny<string>()])
                 .Returns("0");
             var config = new Mock<IConfiguration>();
             config
-                .Setup(x => x.GetSection(It.Is<string>(s => s == MediaBrowser.Controller.Extensions.ConfigurationExtensions.SqliteCacheSizeKey)))
+                .Setup(x => x.GetSection(It.IsAny<string>()))
                 .Returns(configSection.Object);
 
             _fixture = new Fixture().Customize(new AutoMoqCustomization { ConfigureMembers = true });