Prevent one or more plugins to be deactivated by admin link. For clients sites. (or hide it completely with other snippet)

no plugin deactivation

add_filter( 'plugin_action_links', 'disable_plugin_deactivation', 10, 4 );
function disable_plugin_deactivation( $actions, $plugin_file, $plugin_data, $context ) {
  // Remove edit link for all
	if ( array_key_exists( 'edit', $actions ) )
		unset( $actions['edit'] );
	// Remove deactivate link for crucial plugins
	if ( array_key_exists( 'deactivate', $actions ) && in_array( $plugin_file, array(
		'akismet/akismet.php',
		'better-author-bio/better-author-bio.php'
	)))
		unset( $actions['deactivate'] );
	return $actions;
}