FileChooser: Strip trailing null bytes
In Qt 6 those aren't implicitly dropped anymore.
Fixes downloads in Chrome and Firefox opening in /home/foo because they sent us /home/foo/Downloads\0
Inspired by frameworks/solid@6d245e50
In Qt 6 those aren't implicitly dropped anymore.
Fixes downloads in Chrome and Firefox opening in /home/foo because they sent us /home/foo/Downloads\0
Inspired by frameworks/solid@6d245e50