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

src/NadekoBot/_Extensions/ArrayExtensions.cs

@@ -1,4 +1,4 @@
-namespace NadekoBot.Extensions;
+namespace NadekoBot.Extensions;
 
 // made for customreactions because they almost never get added
 // and they get looped through constantly
@@ -34,4 +34,4 @@ public static class ArrayExtensions
     /// <returns>New array with updated elements</returns>
     public static TOut[] Map<TIn, TOut>(this TIn[] arr, Func<TIn, TOut> f)
         => Array.ConvertAll(arr, x => f(x));
-}
+}