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.Integration.Tests/EncodedQueryStringTest.cs

@@ -2,6 +2,8 @@
 // Copyright (c) PlaceholderCompany. All rights reserved.
 // </copyright>
 
+#pragma warning disable CA1054 // URI parameters in test methods
+
 namespace Jellyfin.Server.Integration.Tests
 {
     using System.Net;