ConfigurationSettings.PropertyNamingStrategy CamelCase does not work because JsonExtensions.LogPropertyName is hardcoded as pascal case

[AlexLexicon]

Describe the bug
The ConfigurationSettings.PropertyNamingStrategy does not work:

configuration
    .WriteTo.AzureAnalytics("...", "...", new ConfigurationSettings
    {
        LogName = "mylog",
        PropertyNamingStrategy = NamingStrategy.CamelCase
    })
    .Enrich.FromLogContext();

this is because the JsonExtensions.LogPropertyName is hard coded as a constant in pascal case:

internal static class JsonExtensions
{
    private const string LogPropertyName = "LogProperties";

    ...
}

So when the Flatten method is called:

internal static class JsonExtensions
{
    internal static JObject Flatten(this JObject jsonObject, bool flatObject = true)
    {
        ...

        var logPropToken = jsonObject.GetValue(LogPropertyName);
        jsonObject.Remove(LogPropertyName);

        jsonObject.Add(LogPropertyName, logPropToken.ToString(Newtonsoft.Json.Formatting.None, null));

        return jsonObject;
        }
}

it will throw a NullReferenceException because "logPropToken" is null since it could not find that property.

To Reproduce
Use the ConfigurationSettings.PropertyNamingStrategy set to camel case and make a log call.

Expected behavior
The log should be produced with camel cased properties

Screenshots

[AlexLexicon]

PR: #76