NadekoBot.Extensions should now be fully annotated with nullable reference types as well as many classes from NadekoBot.Common

src/NadekoBot/Common/RequireObjectPropertiesContractResolver.cs

@@ -1,4 +1,5 @@
-using Newtonsoft.Json;
+#nullable disable
+using Newtonsoft.Json;
 using Newtonsoft.Json.Serialization;
 
 namespace NadekoBot.Common;
@@ -11,4 +12,4 @@ public class RequireObjectPropertiesContractResolver : DefaultContractResolver
         contract.ItemRequired = Required.DisallowNull;
         return contract;
     }
-}
+}