feat: Support new application properties and patch endpoint (#9709)

* feat: support new application endpoints

* chore: edit comment

* fix(ClientApplication): handle flags properly

* types: `readonly`

* chore: update route

* feat: add to core

* refactor(ClientApplication): add to user manager

* chore: remove comments

---------

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/core/src/api/applications.ts

@@ -1,7 +1,12 @@
 /* eslint-disable jsdoc/check-param-names */
 
 import type { RequestData, REST } from '@discordjs/rest';
-import { type RESTGetCurrentApplicationResult, Routes } from 'discord-api-types/v10';
+import {
+	type RESTGetCurrentApplicationResult,
+	type RESTPatchCurrentApplicationJSONBody,
+	type RESTPatchCurrentApplicationResult,
+	Routes,
+} from 'discord-api-types/v10';
 
 export class ApplicationsAPI {
 	public constructor(private readonly rest: REST) {}
@@ -15,4 +20,18 @@ export class ApplicationsAPI {
 	public async getCurrent({ signal }: Pick<RequestData, 'signal'> = {}) {
 		return this.rest.get(Routes.currentApplication(), { signal }) as Promise<RESTGetCurrentApplicationResult>;
 	}
+
+	/**
+	 * Edits properties of the application associated with the requesting bot user.
+	 *
+	 * @see {@link https://discord.com/developers/docs/resources/application#edit-current-application}
+	 * @param body - The new application data
+	 * @param options - The options for editing the application
+	 */
+	public async editCurrent(body: RESTPatchCurrentApplicationJSONBody, { signal }: Pick<RequestData, 'signal'> = {}) {
+		return this.rest.patch(Routes.currentApplication(), {
+			body,
+			signal,
+		}) as Promise<RESTPatchCurrentApplicationResult>;
+	}
 }