Improve the `@param` docs for `trackback_response()` and `validate_another_blog_signup()`.

See #30224.

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Add missing `@param`s to `src/wp-includes/pomo` files.

See #30224.


Built from https://develop.svn.wordpress.org/trunk@30663


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Improve the `@param` docs for `src/wp-includes/wp-db.php`.

See #30224.

Built from https://develop.svn.wordpress.org/trunk@30664


git-svn-id: http://core.svn.wordpress.org/trunk@30654 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Improve the `@param` docs for `src/wp-includes/widgets.php`.

See #30224.

Built from https://develop.svn.wordpress.org/trunk@30665


git-svn-id: http://core.svn.wordpress.org/trunk@30655 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Improve the `@param` docs for `src/wp-includes/user.php`.

See #30224.

Built from https://develop.svn.wordpress.org/trunk@30666


git-svn-id: http://core.svn.wordpress.org/trunk@30656 1a063a9b-81f0-0310-95a4-ce76da25c4cd