wallpapers/image: use `QUrl::fromUserInput` to sanitize filename
fromUserInput will add file:// for local files, and sanitize some bizarre characters in filenames.
BUG: 454692 FIXED-IN: 5.27
Edited by Fushan Wen
fromUserInput will add file:// for local files, and sanitize some bizarre characters in filenames.
BUG: 454692 FIXED-IN: 5.27