Replace Gitpod for our demos

Draft PR on GitHub

useernamee → credited fago → .

A move towards GitHub Codespaces has been made in:
- https://github.com/drunomics/lupus-decoupled-project/pull/20
- https://github.com/drunomics/lupus-decoupled-project/pull/22

Documentation has to be improved in:
- https://github.com/drunomics/lupus-decoupled-website/pull/109

useernamee → credited ciprian.stavovei → .

Thank you! The demos work fine 🎉

However, I'd update the README file:

• Move everything gitpod related to the bottom and mark it as deprecated
• Add links to demo and blog setup on codespaces
• Testing options should also use codespaces intead of gitpod

Follow up tickets:

• 📌 Review and improve processes described in Play online. Active
• 📌 Configure nginx to properly handle $_SERVER['REMOTE_ADDR'] in codespaces Active
• 📌 Add possibility to see ddev commands output in GitHub Codespaces Active

I'd like to open the discussion on removing the gitpod URLs from README and documentation. gitpod.io links are still working and devcontainer standard is supported by the gitpod flex so I guess we don't have to remove it completely.

Thank you for review @arthur. I've created a new lupus-decoupled-project PR.

IT's merged, but the resulting description is now a weird mix between gitpod and github!? see https://github.com/drunomics/lupus-decoupled-project?tab=readme-ov-file#...

Development in Cloud
GitHub Codespaces
Gitpod testing options

quick fix: https://github.com/drunomics/lupus-decoupled-project/pull/25/files

The shared cookie domain sections still mentions gitpod, please update!