Update .prettierrc.json

.prettierrc.json

@@ -1,11 +1,19 @@
 {
   "printWidth": 80,
-    "tabWidth": 4,
+  "tabWidth": 2,
   "useTabs": false,
   "semi": true,
   "singleQuote": false,
-    "trailingComma": "none",
+  "trailingComma": "es5",
   "bracketSpacing": true,
-    "arrowParens": "avoid",
+  "arrowParens": "always",
+  "overrides": [
+    {
+      "files": "*.ts",
+      "options": {
+        "tabWidth": 4,
         "parser": "typescript"
+      }
+    }
+  ]
 }