[NEW] Add 'deprecated' tag to existing prefs that have deprecated as a warning

lib/prefs/feature.php

@@ -1554,6 +1554,7 @@ function prefs_feature_list($partial = false)
 			'help' => 'Search',
 			'default' => 'n',
 			'dbfeatures' => ['mysql_fulltext'],
+			'tags' => ['deprecated'],
 			'admin' => 'search',
 			'view' => 'tiki-searchresults.php',
 			'module' => 'search',

lib/prefs/mobile.php

@@ -16,7 +16,7 @@ function prefs_mobile_list()
 			'help' => 'Mobile',
 			'warning' => tra('Deprecated. This feature is no longer under development following the integration of the Bootstrap CSS framework.'),
 			'type' => 'flag',
-			'tags' => ['experimental'],
+			'tags' => ['experimental', 'deprecated'],
 			'dependencies' => [
 				'feature_perspective',
 			],

lib/prefs/search.php

@@ -49,6 +49,7 @@ function prefs_search_list()
 			'dependencies' => ['feature_jquery_autocomplete', 'javascript_enabled'],
 			'warning' => tra('deprecated'),
 			'default' => 'n',
+			'tags' => ['deprecated'],
 		],
 		'search_show_category_filter' => [
 			'name' => tra('Category filter'),