Save shared/environment secrets without restarting environment(s)

[bjarnef]

Issue description

Currently when adding secrets it is only possible to keep these if saved, which trigger restart of environment(s). However I would like the prepare some secrets, but avoid restarting environments on a Friday.

I will like something common in DNS settings, where it is possible to make changes and and afterward typically a "Publish" button an notification info box show up that there are DNS changes and eventually the records with changes highlighted.

I would be great if something similar is possible with secrets.

This part also seems to be a bit inconsistent with other parts in portal how settings etc. are added as it explicit need another click on a save button to be stored.