fix(header): wire multi-function page-type enable like zibll

Connect header_components_show_on through aksrt_header_slide_is_show with
zibll page-type matching, drop the homepage-only gate, align admin options,
apply nav color, enqueue by is_show, remove dead float-btn schema, and
consume footer_tabbar_single extend mode on post singles.

inc/classes/settings/class-aksrt-settings-display-page-groups.php

@@ -51,7 +51,24 @@ trait AKSRT_Settings_Display_Page_Groups {
      */
     public static function get_header_components_settings(): array {
         $s = self::get_all();
+        $allowed_page_types = [
+            'home',
+            'topics',
+            'category',
+            'tag',
+            'author',
+            'single',
+            'search',
+            'forum_home',
+            'forum_plate',
+            'forum_post',
+            'page',
+        ];
         $show_on = isset($s['header_components_show_on']) ? (array) $s['header_components_show_on'] : ['home'];
+        $show_on = array_values(array_intersect(
+            array_map('sanitize_key', $show_on),
+            $allowed_page_types
+        ));
         $show_type = $s['header_components_device_visibility'] ?? '';
         if (!in_array($show_type, ['', 'only_pc', 'only_sm'], true)) {
             $show_type = '';
@@ -60,7 +77,7 @@ trait AKSRT_Settings_Display_Page_Groups {
             'search_enabled'  => self::header_components_search_enabled(),
             'search_config'   => self::get_header_components_search_config(),
             'cards_enabled'   => self::header_components_cards_enabled(),
-            'show_on_pages'   => array_values(array_filter(array_map('sanitize_key', $show_on))),
+            'show_on_pages'   => $show_on,
             'show_type'       => $show_type,
             'filter_blur'     => isset($s['header_components_filter_blur_devices']) ? array_values(array_intersect(array_map('sanitize_key', (array) $s['header_components_filter_blur_devices']), ['pc', 'mobile'])) : [],
             'card_show'       => isset($s['header_components_card_show_devices']) ? array_values(array_intersect(array_map('sanitize_key', (array) $s['header_components_card_show_devices']), ['pc', 'mobile'])) : ['pc', 'mobile'],