Improve federation support

[christophfriedrich]

Several improvements for rendering Federation(Missing)Notices

[m-mohr]

Thanks. Just a couple of clean-ups, othewise LGTM.
Could you share a screenshot of how it looks now, please?

[christophfriedrich]

Screenshots can be seen in the corresponding Web Editor PR: Open-EO/openeo-web-editor#353 (comment)

[m-mohr]

With regards to the Federation and Missing notice:

• The online/offline notice in the federation missing notice is not really needed, als it will always be offline. I'd remove it from there.
• We should probably shorten the text slightly for the Federation missing notice: The following data is incomplete as the following services in the federation are currently not available: ... - makes it also a little less wasteful with regards to space in the Web Editor and solves FederationMissingNotice in Collection component not fitting and redundant #100.

[christophfriedrich]

The online/offline notice in the federation missing notice is not really needed, als it will always be offline. I'd remove it from there.

I'd keep it -- yes it will always be "offline", but I don't see it primarily as a way to convey changing information, but more as a general design element which warns the user. I bet this catches more attention than the "Incomplete" heading of the box.

---

Regarding the texts, I changed them the way you wanted, but remain unconvinced that we have reached the best possible solution for communicating federation information.

[m-mohr]

Actually, I just realized that there are edge cases where it can be online, too.
The backend status can be online, but the cache for processes in the aggregator can still be outdated and miss a specific backend that was previously offline. It also could work the other way around where a backend is offline, but the cache still holds the information for the processes...

Having that said, the solution is good enough for now with potential improvements to be made in the future. For now we need to go forward with other tasks. Thanks.