docs: updated directory structure for basic typescript setup (#8122)

* docs: updated directory structure for basic typescript setup

* Update typescript.mdx

---------

Co-authored-by: Alexander Akait <4567934+alexander-akait@users.noreply.github.com>

Author: valentina-buoro

src/content/guides/typescript.mdx

@@ -11,6 +11,7 @@ contributors:
   - snitin315
   - tusharthakur04
   - ThierryRakotomanana
+  - valentina-buoro
 ---
 
 T> This guide stems from the [_Getting Started_](/guides/getting-started/) guide.
@@ -34,12 +35,13 @@ Now we'll modify the directory structure & the configuration files:
   ├── package.json
   ├── package-lock.json
 + ├── tsconfig.json
-  ├── webpack.config.js
+- ├── webpack.config.ts
++ ├── webpack.config.ts
   ├── /dist
   │   ├── bundle.js
   │   └── index.html
   ├── /src
-  │   ├── index.js
+- │   ├── index.js
 + │   └── index.ts
   └── /node_modules
 ```