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

src/NadekoBot/Modules/Nsfw/SearchImageCacher.cs

@@ -1,4 +1,5 @@
-using Microsoft.Extensions.Caching.Memory;
+#nullable disable
+using Microsoft.Extensions.Caching.Memory;
 
 namespace NadekoBot.Modules.Nsfw.Common;
 
@@ -313,4 +314,4 @@ public class SearchImageCacher : INService
             return new();
         }
     }
-}
+}