(Pending) deletion action is different between groups and projects

Problem

When deleting a group or project, it is necessary to delete the group or project in question twice to ensure it is completely deleted. This is because deletion protection is enabled by default for all groups and projects. The deletion call-to-action looks quite different between groups and projects.

During the first deletion step:

• Projects mention the project path. The button states Delete project. Background is in red.
• Groups do not mention the group path. Headline is in red. The button states Remove group. See this discussion for further feedback.

During the second deletion step:

• Projects look almost identical to the first step. Background is in red.
• Groups contain a lot of bold messaging. Headline is in red. Background is grey. Headline changed to Permanently Remove Group.

Proposal

• Align the wording to Delete. See #454586 (closed).
• The group deletion documentation needs to be updated and references to remove need to be replaced with delete. See !154110 (merged).
• Align the visual presentation of the action between groups and projects

Update deletion action as follows

Implementation guide

• Go through partials in app/views/groups/settings/_advanced.html.haml#L32 and align text
• Align text in https://gitlab.com/gitlab-org/gitlab/-/blob/master/app/views/projects/_remove.html.haml#L17
• See #397033 (comment 1888919633) for correct copy