Use Prettier

package.json

@@ -7,9 +7,10 @@
     "dev": "astro dev",
     "start": "astro dev",
     "build": "astro build",
+    "preview": "astro preview",
+    "format": "prettier -w .",
     "lint:eslint": "eslint . --ext .js,.ts,.astro",
-    "subfont": "subfont -ir --no-fallbacks --silent --root dist",
-    "preview": "astro preview"
+    "subfont": "subfont -ir --no-fallbacks --silent --root dist"
   },
   "devDependencies": {
     "@astrojs/image": "^0.7.0",
@@ -27,6 +28,8 @@
     "eslint-plugin-astro": "^0.19.0",
     "eslint-plugin-jsx-a11y": "^6.6.1",
     "limax": "^v2.1.0",
+    "prettier": "^2.7.1",
+    "prettier-plugin-astro": "^0.5.4",
     "reading-time": "^1.5.0",
     "subfont": "^6.9.0"
   },