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

src/NadekoBot/Db/Extensions/WaifuExtensions.cs

@@ -1,4 +1,5 @@
-using Microsoft.EntityFrameworkCore;
+#nullable disable
+using Microsoft.EntityFrameworkCore;
 using NadekoBot.Services.Database;
 using NadekoBot.Services.Database.Models;
 using NadekoBot.Db.Models;
@@ -143,4 +144,4 @@ VALUES ({null}, {null}, {1}, (SELECT Id FROM DiscordUser WHERE UserId={userId}))
 
         return toReturn;
     }
-}
+}