Update list of extensions for lint-staged

Author: Andrey Okonetchnikov

.prettierrc

@@ -1,5 +1,4 @@
 {
-  "useTabs": true,
   "overrides": [
     {
       "files": ["*.md, *.mdx"],

package.json

@@ -37,6 +37,6 @@
     }
   },
   "lint-staged": {
-    "*.{js,css,md}": "prettier --write"
+    "*.{js,jsx,json,md,mdx}": "prettier --write"
   }
 }