refactor: rename controllers to handlers and handlers to helpers (#660)

* refactor: rename controllers to handlers and handlers to helpers

* fmt

src/handlers/webhooks/WEBHOOKS_UPDATE.ts

@@ -0,0 +1,10 @@
+import { eventHandlers } from "../../bot.ts";
+import { DiscordPayload, WebhookUpdatePayload } from "../../types/mod.ts";
+
+export function handleWebhooksUpdate(data: DiscordPayload) {
+  const options = data.d as WebhookUpdatePayload;
+  eventHandlers.webhooksUpdate?.(
+    options.channel_id,
+    options.guild_id,
+  );
+}