create subgroup without create project permission

What does this MR do?

Original issue: #205513 (closed)

This MR fixes missing subgroup button, when top-level group permissions does not allow to create projects, but allow creating subgroups

Screenshots

Before	After

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers