refactor(helpers): separate functions into files (#667)

* refactor(helpers): separate functions into files

* idk

* idk

src/helpers/emojis/edit_emoji.ts

@@ -0,0 +1,23 @@
+import { RequestManager } from "../../rest/request_manager.ts";
+import { EditEmojisOptions } from "../../types/mod.ts";
+import { endpoints } from "../../util/constants.ts";
+import { requireBotGuildPermissions } from "../../util/permissions.ts";
+
+/** Modify the given emoji. Requires the MANAGE_EMOJIS permission. */
+export async function editEmoji(
+  guildID: string,
+  id: string,
+  options: EditEmojisOptions,
+) {
+  await requireBotGuildPermissions(guildID, ["MANAGE_EMOJIS"]);
+
+  const result = await RequestManager.patch(
+    endpoints.GUILD_EMOJI(guildID, id),
+    {
+      name: options.name,
+      roles: options.roles,
+    },
+  );
+
+  return result;
+}