Added side margin to Clone button

What does this MR do?

Adds the right margin to "Clone" button on the Snippet view. The details of #212549 (closed) are relevant for this MR as well.

Testing

The button is not visible to the users unless the relevant flags are enabled.

• Enable :snippets_vue and :version_snippets feature flags
• Go to a snippet (the button won't be visible just yet)
• Click "Edit" on the Snippet and Save it again
• The button should be visible on the snippet view

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