prettier scripts and precommit hook

package.json

@@ -12,7 +12,9 @@
     "serve:svg": "nodemon --watch 'src/svgs/*' -e svg --exec 'npm run build:svg'",
     "build:css": "tailwindcss -i ./src/app.css -o ./dist/app.css",
     "build:svg": "svgdir2sprite ./src/svgs ./dist/spritesheet.svg",
-    "test": "ava"
+    "test": "ava",
+    "lint": "prettier --check .",
+    "prepare": "husky install"
   },
   "repository": {
     "type": "git",
@@ -31,9 +33,14 @@
     "express": "^4.18.2",
     "express-handlebars": "^7.0.2",
     "fs": "^0.0.1-security",
+    "husky": "^8.0.3",
+    "lint-staged": "^13.2.0",
     "nodemon": "^2.0.21",
     "prettier": "2.8.4",
     "svgdir2sprite": "^1.0.5",
     "tailwindcss": "^3.2.7"
+  },
+  "lint-staged": {
+    "**/*": "prettier --write --ignore-unknown"
   }
 }