Saved objects management: Add warning for UI edit -> read-only UI change

[TinaHeiligers]

In #112034, we changed the edit page to read-only mode. In 7.16, we should warn users about the upcoming change.

Scope:

• Add a warning that the edit UI will change to a read-only view.
• Include the link to the saved objects API docs in the warning.

[elasticmachine]

Pinging @elastic/kibana-core (Team:Core)

[lukeelmers]

Oops, just found this issue :) copying my comment from #112034 (comment)

TBH I am not sure if it's worth adding a warning. We agreed in the original issue #59588 (comment) that we didn't want to go out of our way to show users workarounds for manually changing their SOs due to the consequences of messing this up. We could add a general "this is going away" warning, but it probably would just annoy people if we aren't giving them a workaround.

Just my two cents though, I don't have particularly strong feelings on this & would support adding a warning if others felt it was important (we'd just need to wordsmith it carefully)

[TinaHeiligers]

just found this issue

Ya, I'd only just created it 😉

We could add a general "this is going away" warning, but it probably would just annoy people if we aren't giving them a workaround

Agreed, I don't think it's worth pointing this out, especially because we discourage folks from using it!

I think it's fair to take a 'wait and see' approach. Folks should be using the API's anyway. I've added a 'won't fix' label for now. We can close this issue if that's better.

[afharo]

Should we close this issue?