meilisearch single setting and default search mode

nexus/Install/settings.default.php

@@ -439,13 +439,16 @@ return array (
         'not_seed_box_max_speed' => 10240,
         'max_uploaded_duration' => 0,
     ],
+    'meilisearch' => [
+        'enabled' => 'no',
+        'search_description' => 'no',
+        'default_search_mode' => \App\Models\SearchBox::SEARCH_MODE_EXACT,
+    ],
     'system' => [
         'change_username_min_interval_in_days' => '365',
         'change_username_card_allow_characters_outside_the_alphabets' => 'no',
         'maximum_number_of_medals_can_be_worn' => 3,
         'cookie_valid_days' => 365,
         'maximum_upload_speed' => 8000,
-        'meilisearch_enabled' => 'no',
-        'meilisearch_search_description' => 'no',
     ],
 );