feat: Add CommonJS export for parse5 module (#418)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Titus <tituswormer@gmail.com>

package.json

@@ -24,7 +24,9 @@
         "typescript": "^4.5.5"
     },
     "scripts": {
-        "build": "tsc --build packages/* test",
+        "build": "npm run build:esm && npm run build:cjs",
+        "build:esm": "tsc --build packages/* test",
+        "build:cjs": "tsc -p packages/parse5/tsconfig.cjs.json && echo '{\"type\":\"commonjs\"}' > packages/parse5/dist/cjs/package.json",
         "prettier": "prettier '**/*.{js,ts,md,json,yml}' --loglevel warn",
         "format": "npm run format:es && npm run format:prettier",
         "format:es": "npm run lint:es -- --fix",

packages/parse5/package.json

@@ -27,7 +27,15 @@
         "serialize"
     ],
     "license": "MIT",
-    "main": "dist/index.js",
+    "main": "dist/cjs/index.js",
+    "module": "dist/index.js",
+    "types": "dist/index.d.ts",
+    "exports": {
+        ".": {
+            "import": "dist/index.js",
+            "require": "dist/cjs/index.js"
+        }
+    },
     "repository": {
         "type": "git",
         "url": "git://github.com/inikulin/parse5.git"

packages/parse5/tsconfig.cjs.json

@@ -0,0 +1,8 @@
+{
+    "extends": "./tsconfig.json",
+    "compilerOptions": {
+        "module": "CommonJS",
+        "target": "ES6",
+        "outDir": "dist/cjs"
+    }
+}