WIP: Add delete button to some edit forms
I often navigate to an entity using search, and that works great for editing... but not so when I decide to delete e.g. the mail alias. Then I would have to go back to the listing page and filter on the right values.
I've positioned the button to the far left to not be close to the save button. It's hidden when creating a new item.
Or is this too dangerous? Feedback welcome.
This pattern can be easily applied to more forms if it's desirable.
