Use esbuild to produce a single file

package.json

@@ -18,10 +18,10 @@
 	"bugs": "https://github.com/asciidoctor/asciidoctor-vscode/issues",
 	"homepage": "https://github.com/asciidoctor/asciidoctor-vscode/blob/master/README.md",
 	"icon": "images/icon.png",
+	"main": "./out/extension.js",
 	"browser": "./dist/browser/extension",
-	"main": "./dist/src/extension.js",
 	"engines": {
-		"vscode": "^1.31.0"
+		"vscode": "^1.60.0"
 	},
 	"categories": [
 		"Programming Languages"
@@ -466,11 +466,14 @@
 		]
 	},
 	"scripts": {
+		"vscode:prepublish": "npm run build-ext -- --minify",
 		"copy-assets": "cp node_modules/@highlightjs/cdn-assets/highlight.min.js media/highlightjs && cp -r node_modules/@highlightjs/cdn-assets/languages media/highlightjs && cp -r node_modules/@highlightjs/cdn-assets/styles media/highlightjs",
 		"dev": "npm run build",
 		"build": "npm run copy-assets && npm run build-ext && npm run build-preview",
 		"build-web": "webpack --config extension-browser.webpack.config --mode none",
 		"build-preview": "webpack --config extension-preview.webpack.config --mode production",
+		"build-ext": "esbuild ./src/extension.ts --bundle --outfile=out/extension.js --external:vscode --format=cjs --platform=node",
+		"build-ext:watch": "npm run build-ext -- --sourcemap --watch",
 		"build-ext": "tsc -p ./",
 		"package": "npm run build && npm run build-web && vsce package",
 		"deploy": "vsce publish -p",
@@ -488,6 +491,7 @@
 		"@typescript-eslint/eslint-plugin": "^4.31.1",
 		"@typescript-eslint/parser": "^4.31.1",
 		"copy-webpack-plugin": "^9.0.1",
+		"esbuild": "^0.14.17",
 		"eslint": "^7.32.0",
 		"eslint-plugin-import": "^2.20.2",
 		"eslint-plugin-node": "^11.1.0",

src/commands/exportAsPDF.ts

@@ -3,7 +3,7 @@ import * as os from 'os'
 import * as fs from 'fs'
 import * as path from 'path'
 import { exec, spawn } from 'child_process'
-import { uuidv4 } from 'uuid'
+import { v4 as uuidv4 } from 'uuid'
 import * as zlib from 'zlib'
 import { AsciidocEngine } from '../asciidocEngine'
 import { Command } from '../commandManager'

src/image-paste.ts

@@ -1,7 +1,7 @@
 import * as path from 'path'
 import * as vscode from 'vscode'
 import { spawn } from 'child_process'
-import * as moment from 'moment'
+import moment from 'moment'
 import * as fs from 'fs'
 
 import { AsciidocParser } from './asciidocParser'

src/test/suite/index.ts

@@ -1,6 +1,6 @@
-import * as path from 'path'
-import * as Mocha from 'mocha'
-import * as glob from 'glob'
+import path from 'path'
+import Mocha from 'mocha'
+import glob from 'glob'
 
 export function run (): Promise<void> {
   // Create the mocha test

tsconfig.json

@@ -1,8 +1,9 @@
 {
     "compilerOptions": {
+        "esModuleInterop": true,
         "resolveJsonModule": true,
         "module": "commonjs",
-        "target": "es6",
+        "target": "es2020",
         "outDir": "dist",
         "lib": [
             "es6",