Follow Button: Missing width customization options in button-only mode

[obenland]

Quick summary

The Follow Button block in button-only mode doesn't behave like the Core Button block and is missing customization options, particularly the percentage width options (25%, 50%, 75%, 100%).

Steps to reproduce

1. Add a Follow Button block to a post or page
2. Configure it in button-only mode
3. Open the block settings in the sidebar
4. Compare the available options to the Core Button block

Expected: The Follow Button should offer the same width settings as the Core Button block (25%, 50%, 75%, 100% options)

Actual: The width customization options are missing from the Follow Button block settings

Site owner impact

Fewer than 20% of the total website/platform users

Severity

Moderate

Additional context

The Core Button block provides percentage-based width options in the Settings panel under "WIDTH" allowing users to set the button to 25%, 50%, 75%, or 100% width. The Follow Button should match this behavior for consistency with WordPress core patterns.