Restoring line max chars to 80

To avoid massive reformatting at this moment

Author: riccardoferretti

package.json

@@ -44,7 +44,7 @@
   },
   "prettier": {
     "arrowParens": "avoid",
-    "printWidth": 100,
+    "printWidth": 80,
     "semi": true,
     "singleQuote": true,
     "trailingComma": "es5"