Added recaptcha. Added recaptcha to register page

Moonlight/App/Helpers/MustBeTrueAttribute.cs

@@ -0,0 +1,18 @@
+using System.ComponentModel.DataAnnotations;
+using Logging.Net;
+
+namespace Moonlight.App.Helpers;
+
+[AttributeUsage(AttributeTargets.Property)]
+public class MustBeTrueAttribute : ValidationAttribute
+{
+    public override bool IsValid(object value)
+    {
+        if (value is bool boolValue)
+        {
+            return boolValue;
+        }
+
+        return false;
+    }
+}