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

src/NadekoBot/Services/Settings/IConfigMigrator.cs

@@ -1,6 +1,7 @@
-namespace NadekoBot.Services;
+#nullable disable
+namespace NadekoBot.Services;
 
 public interface IConfigMigrator
 {
     public void EnsureMigrated();
-}
+}