NET-3554 Fix S3240 FP: "Use the '??' operator here" when implicit conversions are applied #9793

public class Result<T>
{
    public string? Error { get; init; }
    public T Value { get; init; }

    public static implicit operator Result<T>(string error) => new Result<T> { Error = error };
    public static implicit operator Result<T>(T value) => new Result<T> { Value = value };

    public static Result<T> Example(T? value)
    {
        // error: Operator '??' cannot be applied to operands of type 'T?' and 'string'
        return value ?? "Value is null";
        // works: implicit conversions are applied. However, Sonar complains with "Use the '??' operator here"
        return value == null ? "Value is null" : value;
    }
}