Static method to make it easier to use the exception handler middleware in startup class

ExceptionHandlerMiddleware.cs

using Microsoft.AspNetCore.Builder;

namespace thetalentbot.JobSeeker.Exceptions
{
    public static class ExceptionHandlerMiddleware
    {
        public static IApplicationBuilder UseExceptionHandlingMiddleware(this IApplicationBuilder builder)
        {
            return builder.UseMiddleware<ExceptionHandler>();
        }
    }
}