add complain switch

lang/en/lang_complains.php

@@ -29,4 +29,5 @@ $lang_complains = [
     'text_view_band_log' => 'View ban log',
     'reply_notify_subject' => 'Complaint replied',
     'reply_notify_body' => 'You have a reply to your complaint on the site %s, click here <a href="%s" target="_blank">to see it</a>.',
+    'complain_not_enabled' => 'Complaint not enabled',
 ];

lang/en/lang_settings.php

@@ -814,6 +814,8 @@ $lang_settings = array
     'text_paid_torrent_enabled_note' => 'When enabled, users with permission can set a certain amount of bonus to be charged to users who download the torrents when they are sent, default: no',
     'row_use_challenge_response_authentication' => 'Challenge-Response Authentication',
     'text_use_challenge_response_authentication_note' => 'If enabled, no plaintext passwords will be transmitted at login, recommended. Future releases will remove this configuration and enable this feature.' ,
+    'row_complain_enabled' => 'Whether to enable complaints',
+    'row_complain_enabled_note' => 'default: "yes"',
 );
 
 ?>