code: public function run(): void
      {
          // Add the js_autofocus.html5 template
          $statement = $this->connection->query('
              SELECT
                  id, scripts
              FROM
                  tl_layout
          ');
  
          while (false !== ($layout = $statement->fetch(\PDO::FETCH_OBJ))) {
              $scripts = StringUtil::deserialize($layout->scripts);
  
              if (!empty($scripts) && \is_array($scripts)) {
                  $scripts[] = 'js_autofocus';
  
                  $stmt = $this->connection->prepare('
                      UPDATE
                          tl_layout
                      SET
                          scripts = :scripts
                      WHERE
                          id = :id
                  ');
  
                  $stmt->execute([':scripts' => serialize(array_values(array_unique($scripts))), ':id' => $layout->id]);
              }
          }
  
          $schemaManager = $this->connection->getSchemaManager();
  
          if ($schemaManager->tablesExist(['tl_calendar_events'])) {
              $this->enableOverwriteMeta('tl_calendar_events');
          }
  
          if ($schemaManager->tablesExist(['tl_faq'])) {
              $this->enableOverwriteMeta('tl_faq');
          }
  
          if ($schemaManager->tablesExist(['tl_news'])) {
              $this->enableOverwriteMeta('tl_news');
          }
  
          $this->connection->query("
              ALTER TABLE
                  tl_content
              CHANGE
                  title imageTitle varchar(255) NOT NULL DEFAULT ''
          ");
  
          $this->connection->query("
              ALTER TABLE
                  tl_content
              ADD
                  overwriteMeta CHAR(1) DEFAULT '' NOT NULL
          ");
  
          $this->connection->query("
              UPDATE
                  tl_content
              SET
                  overwriteMeta = '1'
              WHERE
                  alt != '' OR imageTitle != '' OR imageUrl != '' OR caption != ''
          ");
      }
docs: {@inheritdoc}