Fix navigation manager usage to work on virtual path.

Shogi.Api/Program.cs

@@ -46,15 +46,8 @@ else
 {
 	app.UseResponseCompression();
 }
-app.UseSwagger(options =>
-{
-});
-app.UseSwaggerUI(options =>
-{
-	options.RoutePrefix = "swagger";
-	options.SwaggerEndpoint("v1/swagger.json", "My API V1");
-	options.DocumentTitle = "Shogi.Api";
-});
+app.UseSwagger();
+app.UseSwaggerUI(options => options.DocumentTitle = "Shogi.Api");
 app.UseAuthorization();
 app.Map("/", () => "OK");
 app.MapControllers();