Fix: Compile

Author: Skullians

integrations/ZelChat/src/main/java/com/loohp/multichatdiscordsrvaddon/integration/impl/ZelChatIntegration.java

@@ -61,7 +61,7 @@ public ChatMessage handleChatMessage(@NotNull ChatMessage chatMessage) {
 
         String formatted = formatForDiscord(chatMessage.getRawMessage());
 
-        ChatUtils.toAllow.add(formatted);
+        ChatUtils.toAllow.put(formatted, formatted);
         DiscordSRV.getPlugin().processChatMessage(
                 chatMessage.getBukkitPlayer(),
                 formatted,