Add message to the HTTL updated popup

[venetrius]

Acceptance Criteria

When saving HTTL, there should be a second stage of the dialog that communicates the need to run the batch job

Hints

• There is already logic that handles the success / failure of HTTL update request. The only required change is to remove the behaviour that auto closes the popup. webapps/frontend/ui/cockpit/client/scripts/directives/time-to-live/time-to-live-dialog.js:55 customOnChange();

Parent

https://github.com/camunda/camunda-bpm-platform/issues/4093

Tasklist

### Pull Requests
- [ ] https://github.com/camunda/camunda-bpm-platform-ee/pull/897
- [ ] https://github.com/camunda/camunda-bpm-platform/pull/4114

[venetrius]

If the HTTL popup is opened from the cleanup page it has a customOnChange handler attached. On update HTTL request success this customOnChange calls updatePage to update the cleanable instances table which moves the pages to loading state closing the popup.

As changing the HTTL should not change the number of cleanable instances I opted to remove the unnecessary page reload.

An other option would be to trigger the customOnChange() on HTTL updated dialog closed rather then on HTTL update request success. But removing the code has advantages of:

• Not triggering a reload if not needed is a better UX.
• Simplifies code base by not having undead code .

[gbetances089]

Tested on camunda-bpm-run-ee-7.21.0-20240306.165719-117

https://www.loom.com/share/36942a4684354105a21569b50cdf74c3?sid=9b5800db-d3aa-405b-9fe8-1d2273f30778