prevent third-party types in twoslash snippets

packages/documentation/copy/en/javascript/JSDoc Reference.md

@@ -221,6 +221,7 @@ myPet.name;
 import types can be used to get the type of a value from a module if you don't know the type, or if it has a large type that is annoying to type:
 
 ```js twoslash
+// @types: node
 // @filename: accounts.d.ts
 export const userAccount = {
   name: "Name",
@@ -746,6 +747,7 @@ Otherwise, `@example` will be parsed as a new tag.
 ### Other supported patterns
 
 ```js twoslash
+// @types: react
 class Foo {}
 // ---cut---
 var someObj = {

packages/typescriptlang-org/gatsby-config.js

@@ -158,6 +158,10 @@ module.exports = {
               defaultOptions: {
                 noErrorValidation: true,
               },
+              defaultCompilerOptions: {
+                types: [],
+                target: 7, // ES2020
+              },
             },
           },
           "gatsby-remark-copy-linked-files",