fix: xplb and xpglb pagination fixed, closes #430

fix: Page number when there is an unknown number of items while paginating is now correct
fix: .stm and .stma fixed and can now mention everyone as long as the user executing the command also can
dev: Cleaned up/improved some code

src/NadekoBot/Db/Models/GuildConfig.cs

@@ -3,6 +3,7 @@ namespace NadekoBot.Db.Models;
 
 public class GuildConfig : DbEntity
 {
+    // public bool Keep { get; set; }
     public ulong GuildId { get; set; }
 
     public string Prefix { get; set; }