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

src/NadekoBot/Common/Attributes/Aliases.cs

@@ -1,4 +1,4 @@
-using System.Runtime.CompilerServices;
+using System.Runtime.CompilerServices;
 
 namespace NadekoBot.Common.Attributes;
 
@@ -9,4 +9,4 @@ public sealed class AliasesAttribute : AliasAttribute
         : base(CommandNameLoadHelper.GetAliasesFor(memberName))
     {
     }
-}
+}