Restructured the project structure back to the way it was, there's no reasonable way to split the modules

src/NadekoBot/Db/Models/GroupName.cs

@@ -0,0 +1,11 @@
+#nullable disable
+namespace Nadeko.Bot.Db.Models;
+
+public class GroupName : DbEntity
+{
+    public int GuildConfigId { get; set; }
+    public GuildConfig GuildConfig { get; set; }
+
+    public int Number { get; set; }
+    public string Name { get; set; }
+}