feat: add devcontainer for easier development

[lxndrblz]

Description

Adds a simple dev container.

Issue Number:

---

Additional Information (Optional)

---

Checklist

Yes, I included all necessary artefacts, including:

• [ ] Tests
• [ ] Documentation
• [x] Implementation (Code and Ressources)
• [ ] Example

---

Testing Checklist

Yes, I ensured that all of the following scenarios were tested:

• [x] Desktop Light Mode (Default)
• [x] Desktop Dark Mode
• [x] Desktop Light RTL Mode
• [x] Desktop Dark RTL Mode
• [x] Mobile Light Mode
• [x] Mobile Dark Mode
• [x] Mobile Light RTL Mode
• [x] Mobile Dark RTL Mode

---

Notify the following users

• List users with @ to send Notifications

[netlify[bot]]

✅ Deploy Preview for anatole-demo ready!

Name	Link
🔨 Latest commit	f44e983f148454ddfbe592aa0f0d35d6c4fc219e
🔍 Latest deploy log	https://app.netlify.com/sites/anatole-demo/deploys/6692a2239d6c410008fa9fcb
😎 Deploy Preview	https://deploy-preview-509--anatole-demo.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 90 Accessibility: 88 Best Practices: 100 SEO: 92 PWA: - View the detailed breakdown and full score reports

---

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

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud