Switching the forgefriends codebase from Gitea to Codeberg

After today’s exploration I’m less convinced about the technical stability of Codeberg over Gitea. There is no CI and the code deployed in production is manually tested in a VM before being deployed. Which sometime leads to regressions when cherry-picking a fix that needs reverting.

In addition it seems that moving CB/ commits to the latest stable branch is essentially an ad-hoc manual process. Testing that it works as expected is also a manual process.