Add auto-registration mechanism

- Add User registration mechanism when adding auth provider id to claims, if no User Id corresponds to the auth provider Id
- Swallow unique constraint violation for unique auth provider id on user table, in case of duplicate requests
- Add Serilog logging
- Add no bookmarks and no tags message when none is found on Bookmark List page

YABA.API/Program.cs

@@ -12,6 +12,7 @@ using YABA.API.Settings.Swashbuckle;
 using YABA.Data.Configuration;
 using YABA.Data.Context;
 using YABA.Service.Configuration;
+using Serilog;
 
 var builder = WebApplication.CreateBuilder(args);
 var configuration = builder.Configuration;
@@ -77,6 +78,10 @@ builder.Services.AddSwaggerGen(
          }
 );
 
+// Add Serilog
+Log.Logger = new LoggerConfiguration().ReadFrom.Configuration(configuration).CreateLogger();
+builder.Host.UseSerilog();
+
 var app = builder.Build();
 
 // Run database migrations