Add the ability to get the filename from the Upload component on FileRejectedEvent

[FollowSteph]

Describe your motivation

The method getFilename() is available on the SucceededEvent but not the FileRejectedEvent. This would be very useful to be able to display an error message to let the user know which files failed. Yes it is displayed in the component but in my case I'm trying to separate out the progress bar because it's a button (the upload component) on the top of a grid where displaying the files uploaded, etc. is not necessarily appropriate. See this Stackoverflow question for more details: https://stackoverflow.com/questions/72006963/is-there-a-way-to-separate-out-the-progress-bar-from-the-upload-component-in-vaa

Describe the solution you'd like

FileRejectedEvent adds the method getFileName() the same as SucceededEvent offers.

Describe alternatives you've considered

There is currently no way to know what file failed to upload.

Additional context

No response

[yuriy-fix]

Could be related: #1328

[FollowSteph]

Yes it appears to be the same.