add fix and prettierrc

.prettierrc.js

@@ -0,0 +1,3 @@
+module.exports = {
+  singleQuote: true,
+};

package.json

@@ -36,7 +36,7 @@
     "test": "react-scripts test",
     "eject": "craco eject",
     "format": "prettier --write src/**/*.ts{,x}",
-    "lint": "eslint src/**/*.js{,x}"
+    "lint": "eslint --fix src/**/*.js{,x}"
   },
   "eslintConfig": {
     "extends": [