As of v0.29.5, SelectFileWidget uses 'close' icon for clear input functionality.
We need to
- use 'clear' icon similar to any other input treatment, exemplified SearchInputWidget,
- fix positioning of button (WikimediaUI theme)
- fix padding of file name
- update demos to use different indicator icon for demo
Update 2018-12-15
It makes more sense to make use of the 'clear' icon for button interactive area here.