feat: add ability to redirect to source post when using default server

[Joshix-1]

OpenGraph now gets displayed in more cases.

It's running successfully at: https://elk.fosspri.de/

$ curl -ILH "User-Agent: Bot" -sSf https://elk.fosspri.de/@TodePond@mas.to/111716043106035806 | grep -iP "^HTTP|^location:"
HTTP/1.1 301 Moved Permanently
location: https://fosspri.de/@TodePond@mas.to/111716043106035806
HTTP/1.1 302 Found
Location: https://mas.to/@TodePond/111716043075744429
HTTP/2 200 

The chain of redirects leads to the original which then displays open graph information

[stackblitz]

Run & review this pull request in StackBlitz Codeflow.

[netlify]

✅ Deploy Preview for elk-docs canceled.

Name	Link
🔨 Latest commit	fa42d7f
🔍 Latest deploy log	https://app.netlify.com/sites/elk-docs/deploys/65d50f70ac77450008d489d4

[netlify]

✅ Deploy Preview for elk-zone ready!

Name	Link
🔨 Latest commit	fa42d7f
🔍 Latest deploy log	https://app.netlify.com/sites/elk-zone/deploys/65d50f70f5ec5a0008454b9a
😎 Deploy Preview	https://deploy-preview-2551--elk-zone.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 configuration.