Revert "fix(client): revert es2017"

This reverts commit 0ddabdbf68.

packages/client/src/init.ts

@@ -39,6 +39,7 @@ import { reactionPicker } from '@/scripts/reaction-picker';
 import { getUrlWithoutLoginId } from '@/scripts/login-id';
 import { getAccountFromId } from '@/scripts/get-account-from-id';
 
+(async () => {
 	console.info(`Misskey v${version}`);
 
 	if (_DEV_) {
@@ -437,3 +438,4 @@ if ($i) {
 
 	// shortcut
 	document.addEventListener('keydown', makeHotkey(hotkeys));
+})();

packages/client/vite.config.ts

@@ -49,6 +49,7 @@ export default defineConfig(({ command, mode }) => {
 				'chrome100',
 				'firefox100',
 				'safari15',
+				'es2017', // TODO: そのうち消す
 			],
 			manifest: 'manifest.json',
 			rollupOptions: {