Use Definitions instead File
Use Definitions instead File

`File::getDefaultFileTypes()` was removed in commit [f63db5c67f953dbbd3470058870a9c67d9096f39](https://github.com/octobercms/library/commit/f63db5c67f953dbbd3470058870a9c67d9096f39#diff-b062dfb9a3f1e4c504ad988c977f1b40)

Use `Definitions::get('defaultExtensions')` instead.
responsiv/uploader-plugin,responsiv/uploader-plugin,responsiv/uploader-plugin