FTM: New UVE Toolbar - Implement "Copy URL" button

[KevinDavilaDotCMS]

Parent Issue

#30598

Task

Implement the logic for the "Copy URL" button in the new UVE Toolbar component. This task involves modifying (if necessary) store logic for the newWithEditorToolbar() feature store, reusing existing copy URL functionality where possible.

Proposed Objective

Add the "Copy URL" button logic to the new toolbar and ensure it functions correctly under the feature flag, maintaining consistency with the existing copy URL functionality.

Acceptance Criteria

• Ensure the "Copy URL" button functions correctly and integrates seamlessly with the new toolbar, in traditional and headless pages
• The behaviour of the current "Copy URL" button should not be affected