Update confirm danger phrase

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What does this MR do and why?

In !146938 (merged) the copy in the transfer group/project modals was updated. Since it was a shared modal it caused a UX bug. This merge requests updates the styling and copy according to the new UX design in #397039.

The styling for the confirmation phrase in the confirm danger modal is updated. The phrase is divided into two separate lines. The first line has a new label tag instead of a p-tag since it is a label for the confirm name input, and it is bolded. The confirmation phrase itself is on a separate line.

The phrase has been updated in the constants file and extracted to the translation file. The test case has been updated to test for the new phrasing.

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Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Go to the general settings for a group
2. Click either of the buttons Transfer Group or Delete Group

Related to #467787