Defined new configs for not found redirects

config/autoload/redirects.global.php

@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+return [
+
+    'not_found_redirects' => [
+        'invalid_short_url' => null, // Formerly url_shortener.not_found_short_url.redirect_to
+        '404' => null,
+        'base_url' => null,
+    ],
+
+];

config/autoload/url-shortener.global.php

@@ -12,10 +12,6 @@ return [
             'hostname' => env('SHORTENED_URL_HOSTNAME'),
         ],
         'validate_url' => true,
-        'not_found_short_url' => [
-            'enable_redirection' => false,
-            'redirect_to' => null,
-        ],
     ],
 
 ];

config/config.php

@@ -31,4 +31,5 @@ return (new ConfigAggregator\ConfigAggregator([
 ], 'data/cache/app_config.php', [
     Core\Config\SimplifiedConfigParser::class,
     Core\Config\BasePathPrefixer::class,
+    Core\Config\DeprecatedConfigParser::class,
 ]))->getMergedConfig();