chore: add prettier setup

.prettierignore

@@ -0,0 +1,6 @@
+node_modules
+package-lock.json
+build
+.wrangler
+public
+wrangler.toml

.prettierrc

@@ -0,0 +1,10 @@
+{
+  "semi": true,
+  "tabWidth": 2,
+  "printWidth": 80,
+  "endOfLine": "lf",
+  "singleQuote": true,
+  "arrowParens": "always",
+  "bracketSpacing": true,
+  "trailingComma": "es5"
+}

package.json

@@ -30,7 +30,8 @@
     "pretty": "prettier --write \"./**/*.{js,jsx,ts,tsx,json}\"",
     "build": "rollup -c",
     "prepublishOnly": "npm run build",
-    "start:node": "node build/start-server.js"
+    "start:node": "node build/start-server.js",
+    "format": "prettier --write \"./**/*.{js,jsx,ts,tsx,json}\""
   },
   "dependencies": {
     "@aws-crypto/sha256-js": "^5.2.0",