improve migration file + seedbox management

lang/en/lang_functions.php

@@ -331,6 +331,7 @@ $lang_functions = array
     'text_contactstaff' => 'Contact staff',
     'full_site_promotion_in_effect' => 'Full site [%s] in effect! Deadline: %s',
     'text_torrent_to_approval' => 'There %s%u not approval torrent%s.',
+    'std_confirm_remove' => 'Are you sure you want to delete it?',
 );
 
 ?>

lang/en/lang_usercp.php

@@ -252,6 +252,8 @@ $lang_usercp = array
     'text_two_step_secret_bind_complete_note' => 'Enter code to complete the two-step authentication',
     'text_two_step_secret_unbind_note' => 'Enter code to cancel two-step authentication',
     'row_passkey_login_url' => 'Passkey login URL',
+    'row_seed_box' => 'SeedBox',
+    'add_seed_box_btn' => 'Register',
 );
 
 ?>