Addition of kubevirt documentation

[addyess]

• Adding a kubevirt charm page
• Adding a new sidenave options to navigate to this page

[netlify[bot]]

✅ Deploy Preview for cdk-next ready!

Name	Link
🔨 Latest commit	d2009202f77bd0b415d6f7f2d5b2784b551470ad
🔍 Latest deploy log	https://app.netlify.com/sites/cdk-next/deploys/643eab263e3367000886aae3
😎 Deploy Preview	https://deploy-preview-767--cdk-next.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.