Docs: Missing inline documentation for wp_dashboard_browser_nag()

[grapplerulrich]

The function wp_dashboard_browser_nag() has only a single line inline documentation. It is missing the version it was added and the the return parameter.

​https://developer.wordpress.org/reference/functions/wp_dashboard_browser_nag/

// Display Browser Nag Meta Box
function wp_dashboard_browser_nag() {

My suggestion for the inline block would be:

/**
 * Display Browser Nag Meta Box.
 *
 * @since 3.2.0
 *
 * @return string The notice output for the 'Browse Happy' nag meta box.
 */
function wp_dashboard_browser_nag() {

[SergeyBiryukov]

In 46880:

Docs: Improve documentation for wp_dashboard_browser_nag() and dashboard_browser_nag_class().

Props grapplerulrich.
Fixes #48932.