/**
  * Mediathek and Subsection Manager cannot be used simultaneously: 
  * This page deactivates one of these two extensions based on the context and returns to the extension overview.
  */
 public function build($context)
 {
     $ExtensionManager = new ExtensionManager(Administration::instance());
     // Deactivate extension
     if ($context[0] == 'mediathek' || $context[0] == 'subsectionmanager') {
         $ExtensionManager->disable($context[0]);
     }
     // Return to extension overview
     redirect(URL . '/symphony/system/extensions/');
 }