fix correct reference to config[] in filedownloadplugin.class.php

[studiovlijmscherp]

Error in file: /core/components/filedownloadr/model/filedownloadr/filedownloadplugin.class.php

The reference to to $fileDownload->config[] array isn't correct. Should be:
45: $this->configs = $fileDownload->config;

instead of:
45: $this->configs = $fileDownload->configs;