Combine esbuild scripts (#184531)

* Combine esbuild scripts

This combines the various build scripts used for building webview/notebook content. This should make it easier to update settings for them

As part of this, I also fixed the script so that on watch it restarts automatically on syntax errors instead of exiting

* Migrate other build script

* Fixing math build script

extensions/markdown-language-features/esbuild-preview.js

@@ -4,42 +4,15 @@
  *--------------------------------------------------------------------------------------------*/
 // @ts-check
 const path = require('path');
-const esbuild = require('esbuild');
-
-const args = process.argv.slice(2);
-
-const isWatch = args.indexOf('--watch') >= 0;
-
-let outputRoot = __dirname;
-const outputRootIndex = args.indexOf('--outputRoot');
-if (outputRootIndex >= 0) {
-	outputRoot = args[outputRootIndex + 1];
-}
 
 const srcDir = path.join(__dirname, 'preview-src');
-const outDir = path.join(outputRoot, 'media');
+const outDir = path.join(__dirname, 'media');
 
-function build() {
-	return esbuild.build({
-		entryPoints: [
-			path.join(srcDir, 'index.ts'),
-			path.join(srcDir, 'pre'),
-		],
-		bundle: true,
-		minify: true,
-		sourcemap: false,
-		format: 'iife',
-		outdir: outDir,
-		platform: 'browser',
-		target: ['es2020'],
-	});
-}
-
-build().catch(() => process.exit(1));
-
-if (isWatch) {
-	const watcher = require('@parcel/watcher');
-	watcher.subscribe(srcDir, () => {
-		return build();
-	});
-}
+require('../esbuild-webview-common').run({
+	entryPoints: [
+		path.join(srcDir, 'index.ts'),
+		path.join(srcDir, 'pre'),
+	],
+	srcDir,
+	outdir: outDir,
+}, process.argv);