Smoketest improvements: (#3369)

- Add a smoketest for packaging with vite
- Re-enable the smoketest for packaging with esbuild
- Re-enable the smoketest on webkit

test/smoke/package-vite.ts

@@ -0,0 +1,19 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vite from 'vite';
+import * as path from 'path';
+
+async function main() {
+	await vite.build({
+		root: path.resolve(__dirname, './vite/'),
+		base: '/test/smoke/vite/dist/',
+		build: {
+			minify: false
+		}
+	});
+}
+
+main();