Updated prettier settings to reflect new features.

.prettierrc

@@ -1,5 +1,7 @@
 {
-  "printWidth": 120,
+  "printWidth": 160,
   "singleQuote": true,
-  "bracketSpacing": false
+  "bracketSpacing": false,
+  "arrowParens": "avoid",
+  "trailingComma": "none"
 }