Use Parcel 2 for the example page (Andarist#295)

* Migrate to Parcel 2

* Tweak docs:build script

* Attempt to use parcel@2.0.0-nightly.454

* Move docs-related scripts to the example dir

Author: Andarist

.gitignore

@@ -5,3 +5,4 @@ example/.nojekyll
 dist
 node_modules
 .cache
+.parcel-cache

example/package.json

@@ -0,0 +1,7 @@
+{
+  "private": true,
+  "scripts": {
+    "dev": "parcel ./index.html --open",
+    "build": "parcel build ./index.html --dist-dir ./dist --public-url ."
+  }
+}

package.json

@@ -21,17 +21,19 @@
     "./dist/react-textarea-autosize.esm.js": "./dist/react-textarea-autosize.browser.esm.js"
   },
   "sideEffects": false,
-  "files": ["dist"],
+  "files": [
+    "dist"
+  ],
   "author": "Andrey Popp <8mayday@gmail.com> (httsps://andreypopp.com/)",
   "contributors": [
     "Mateusz Burzyński <mateuszburzynski@gmail.com> (https://github.com/Andarist)"
   ],
   "scripts": {
     "prebuild": "npm run clean",
     "build": "preconstruct build",
-    "docs:dev": "parcel example/index.html --out-dir example/dist --open",
-    "docs:build": "parcel build example/index.html --out-dir example/dist",
-    "docs:publish": "npm run docs:build && cd example/dist && git init && git commit --allow-empty -m 'update docs' && git checkout -b gh-pages && touch .nojekyll && git add . && git commit -am 'update docs' && git push git@github.com:Andarist/react-textarea-autosize gh-pages --force",
+    "docs:dev": "npm run dev --prefix example",
+    "docs:build": "npm run build --prefix example",
+    "docs:publish": "npm run docs:build && cd ./example/dist && git init && git commit --allow-empty -m 'update docs' && git checkout -b gh-pages && touch .nojekyll && git add . && git commit -am 'update docs' && git push git@github.com:Andarist/react-textarea-autosize gh-pages --force",
     "clean": "rimraf dist",
     "lint": "eslint --ext .js,.ts,.tsx src",
     "prepare": "npm run build",
@@ -50,18 +52,19 @@
     "use-latest": "^1.0.0"
   },
   "devDependencies": {
-    "@babel/core": "^7.10.2",
-    "@babel/plugin-proposal-object-rest-spread": "^7.10.1",
-    "@babel/plugin-transform-runtime": "^7.10.1",
-    "@babel/preset-env": "^7.10.2",
-    "@babel/preset-react": "^7.10.1",
-    "@babel/preset-typescript": "^7.10.1",
+    "@babel/core": "^7.10.4",
+    "@babel/plugin-proposal-object-rest-spread": "^7.10.4",
+    "@babel/plugin-transform-runtime": "^7.10.4",
+    "@babel/preset-env": "^7.10.4",
+    "@babel/preset-react": "^7.10.4",
+    "@babel/preset-typescript": "^7.10.4",
     "@changesets/changelog-github": "^0.2.6",
     "@changesets/cli": "^2.8.0",
     "@preconstruct/cli": "^1.1.14",
     "@testing-library/jest-dom": "^5.9.0",
     "@testing-library/react": "^10.1.0",
     "@types/react": "^16.9.35",
+    "@types/react-dom": "^16.9.8",
     "@typescript-eslint/eslint-plugin": "^3.1.0",
     "@typescript-eslint/parser": "^3.1.0",
     "babel-eslint": "11.0.0-beta.2",
@@ -74,7 +77,7 @@
     "husky": "^4.2.5",
     "jest": "^26.0.1",
     "lint-staged": "^10.2.8",
-    "parcel-bundler": "^1.12.4",
+    "parcel": "2.0.0-nightly.454",
     "prettier": "^2.0.5",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",