Unify first script example (code and doc) between different languages

[bonigarcia]

Description

This PR unifies the logic of the "first script" page between the different binding languages.

Motivation and Context

At this moment, there are slight differences between the "first script" example. For instance, some uses duckduckgo as SUT, and others not. Duckduckgo is not very convenient of testing in CI since it eventually has a slow response.

Types of changes

• [X] Change to the site (I have double-checked the Netlify deployment, and my changes look good)
• [X] Code example added (and I also added the example to all translated languages)
• [ ] Improved translation
• [ ] Added new translation (and I also added a notice to each document missing translation)

Checklist

• [X] I have read the contributing document.
• [X] I have used hugo to render the site/docs locally and I am sure it works.

[netlify[bot]]

✅ Deploy Preview for jovial-austin-42fe02 ready!

Name	Link
🔨 Latest commit	093e33338b2c9a8ec8635ed40f15bccc57f4967d
🔍 Latest deploy log	https://app.netlify.com/sites/jovial-austin-42fe02/deploys/62fa529669b34300084dfc17
😎 Deploy Preview	https://deploy-preview-1121--jovial-austin-42fe02.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.

[netlify[bot]]

✅ Deploy Preview for jovial-austin-42fe02 ready!

Name	Link
🔨 Latest commit	26e685c055f5f0df83b9fc99597204e04b7d7007
🔍 Latest deploy log	https://app.netlify.com/sites/jovial-austin-42fe02/deploys/62fe2c81c6325c00092babb1
😎 Deploy Preview	https://deploy-preview-1121--jovial-austin-42fe02.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.