Docs: Add missing @global descriptions and refine parameter documentation

[noruzzamans]

Trac Ticket: https://core.trac.wordpress.org/ticket/64224

Why this change?

This change adds missing @global documentation tags.

This aligns the codebase with the WordPress PHP Documentation Standards, ensuring that global variables used within functions are properly documented for better static analysis and code clarity.

[github-actions]

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Props noruzzaman, huzaifaalmesbah, westonruter.

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[github-actions]

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[huzaifaalmesbah]

Some function docblocks still have scope improvements on class-wp-links-list-table.php: L79 L86 L145

Although these are not related to globals or parameters, they are missing proper summaries and return documentation.
Could you please review and update these as well?

[westonruter]

Note: There's no real need to merge trunk back into a branch unless it's likely there will be a merge conflict or a breakage. The committer will ultimately ensure the latest from trunk is merged at the time of commit to SVN.

[noruzzamans]

Some function docblocks still have scope improvements on class-wp-links-list-table.php: L79 L86 L145

Although these are not related to globals or parameters, they are missing proper summaries and return documentation. Could you please review and update these as well?

Thanks @huzaifaalmesbah. I have updated and improved the missing docs.

[noruzzamans]

Note: There's no real need to merge trunk back into a branch unless it's likely there will be a merge conflict or a breakage. The committer will ultimately ensure the latest from trunk is merged at the time of commit to SVN.

Thanks @westonruter! I have resolved all issues.