Highlighted "Save" button suggest being the focused action when hitting "Enter"

[schweigisito]

Initial Checklist

• I understand this is a bug report and questions should be posted in the Community Discussions
• I searched issues and couldn’t find anything (or linked relevant results below)

Bug Description

Some highlighted "Save", "New", "Confirm" buttons in dialogues in which users enter something suggests being the focused action when hitting "enter". Sometimes it isn't.

The whole UI might get a "review" regarding this to guarantee a consistent behaviour in all modules and dialogues.

Related to #2994

Tested version: 7.3.0

Reproduction Steps

E.g. in renaming groups

• go to Admin group settings
• create a group "test group"
• rename the group by entering "test group xyz"
• hit "Enter"
  => Action is canceled and group is not renamed as "Confirm" button didn't have the focus.

Expected Outcome

"Enter" or maybe in general, the highlighted buttons may also have the focus for hitting "Enter" actions.

Actual Outcome

Sometimes it cancels the input. In above example pressing "tab" skips the focus through the actual buttons, which is identified by a button surrounding line.