Improve layout of publish meta box secondary actions

[iambherulal]

The Publish button in the classic editor becomes visually cluttered when plugins like "Yoast Duplicate Post" add additional action links below the primary Update button.

Currently, core places all secondary actions inline in a cramped horizontal layout, which causes wrapping, inconsistent spacing, and poor readability.

[iambherulal]

Before

[iambherulal]

After

[iambherulal]

​https://github.com/WordPress/wordpress-develop/pull/11978

The Publish button in the classic editor becomes visually cluttered when plugins like "Yoast Duplicate Post" add additional action links below the primary Update button.

Currently, core places all secondary actions inline in a cramped horizontal layout, which causes wrapping, inconsistent spacing, and poor readability.

AI assistance: Yes
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Used for: Writing ticket title and description.

Trac Ticket : https://core.trac.wordpress.org/ticket/65351

[sabernhardt]

#65286 already reported the cramped layout.

Also, if the primary button link belongs above the other links, it should be in the markup first (not using row-reverse or column-reverse).