How to configure the Optimizely DAM picker to allow videos

Startup.cs

// Omitted for brevity

namespace YourApplication
{
    public class Startup
    {
        // Omitted for brevity

        public Startup(IWebHostEnvironment webHostingEnvironment, IConfiguration configuration)
        {
            // Omitted for brevity
        }

        public void ConfigureServices(IServiceCollection services)
        {
            // Omitted for brevity

            // Add and configure DAM
            services.AddDAMUi(o =>
            {
                o.AvailableTypes = new List<Type>()
                {
                    typeof(ImageData), 
                    typeof(VideoData)
                };
            });
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            // Ommitted for brevity
        }
    }
}