Bump guild batch limit to 200 (#3171)

Author: Misha-133

src/Discord.Net.Core/DiscordConfig.cs

@@ -116,7 +116,7 @@ public class DiscordConfig
         /// <returns>
         ///     The maximum number of guilds that can be gotten per-batch.
         /// </returns>
-        public const int MaxGuildsPerBatch = 100;
+        public const int MaxGuildsPerBatch = 200;
         /// <summary>
         ///     Returns the max user reactions allowed to be in a request.
         /// </summary>