feat: show eslint warnings in vscode

Author: iamturns

templates/.vscode/settings.json.template

@@ -5,5 +5,11 @@
     "**/node_modules": true
   },
   "editor.formatOnSave": true,
-  "prettier.eslintIntegration": true
+  "prettier.eslintIntegration": true,
+  "eslint.validate": [
+    "javascript",
+    "javascriptreact",
+    "typescript",
+    "typescriptreact"
+  ]
 }