feat(widgets): expand WidgetAjax routes and ajaxpager wraps

Register category-block/recommend, boards, tag-cloud, categories,
and term endpoints; wrap oneline/comments/users with ajaxpager shells.

src/AKSRT/Widgets/WidgetUserLists.php

@@ -129,7 +129,10 @@ class WidgetUserLists extends \WP_Widget {
 		if ($title !== '') {
 			echo $args['before_title'] . esc_html($title) . $args['after_title']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 		}
+		$rest = rest_url('aksrt/v1/widgets/user-lists');
+		echo '<div class="ajaxpager" data-aksrt-ajaxpager data-aksrt-ajax-url="' . esc_url($rest) . '">';
 		echo $html; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+		echo '</div>';
 		echo $args['after_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 	}