chore: Add Code Formatter.

Author: jaywcjlove

Diff for: .husky/pre-commit

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+npx pretty-quick --staged

Diff for: .prettierignore

@@ -0,0 +1,13 @@
+**/*.md
+**/*.svg
+**/*.ejs
+**/*.html
+**/*.yml
+package.json
+node_modules
+dist
+build
+coverage
+lib
+esm
+test

Diff for: .prettierrc

@@ -0,0 +1,11 @@
+{
+  "singleQuote": true,
+  "trailingComma": "all",
+  "printWidth": 120,
+  "overrides": [
+    {
+      "files": ".prettierrc",
+      "options": { "parser": "json" }
+    }
+  ]
+}

Diff for: package.json

@@ -6,15 +6,17 @@
   "main": "cjs/index.js",
   "module": "esm/index.js",
   "scripts": {
-    "prepare": "npm run build",
+    "prepare": "npm run build && husky install",
     "released": "npm run build && npm run doc",
     "doc": "kkt build --app-src ./website",
     "start": "kkt start --app-src ./website",
-    "watch": "tsbb watch",
-    "build": "tsbb build && npm run css:build && npm run css:build:dist",
     "css:watch": "compile-less -d src -o esm --watch",
     "css:build": "compile-less -d src -o esm",
-    "css:build:dist": "compile-less -d src --combine markdown-editor.css --rm-global"
+    "css:build:dist": "compile-less -d src --combine markdown-editor.css --rm-global",
+    "prettier": "prettier --write '**/*.{js,jsx,tsx,ts,less,md,json}'",
+    "pretty-quick": "pretty-quick --staged",
+    "watch": "tsbb watch",
+    "build": "tsbb build && npm run css:build && npm run css:build:dist"
   },
   "repository": {
     "type": "git",
@@ -52,12 +54,14 @@
     "@types/react-dom": "17.0.9",
     "@uiw/react-github-corners": "1.5.3",
     "@uiw/reset.css": "1.0.5",
-    "babel-plugin-transform-remove-imports": "1.5.5",
     "compile-less-cli": "1.8.9",
     "kkt": "6.11.0",
+    "prettier": "2.4.1",
+    "pretty-quick": "3.1.1",
     "react": "17.0.2",
     "react-dom": "17.0.2",
-    "tsbb": "3.4.4"
+    "tsbb": "3.4.4",
+    "husky": "^7.0.0"
   },
   "browserslist": {
     "production": [