Disable Next.js telemetry

Current version: 20.x

Next.js collects anonymous telemetry data about general usage. Participation in the program is optional.

To disable telemetry data collection:

Identify your Next.js .env file, based on the development environment setup you chose.
- For full-stack development, go to src/rendering/.env.
- For front-end development, go to the .env file in the root directory of your project.
Set the following variable in your .env file:
RequestResponseshell
```
NEXT_TELEMETRY_DISABLED=1
```