Icon: fix rendering of image: urls on High DPI
Summary:
QQuickImageProvider wants the requestedSize to be accounting for the dpi
scaling. We have no information about about the DPI from the implementation
anyway.
This is also how it's explained in the qtdeclarative/manual/highdpi/ test in Qt.
BUG: 417647
Reviewers: Plasma, Kirigami, mart, davidedmundson
Reviewed By: Plasma, davidedmundson
Subscribers: davidedmundson, plasma-devel
Tags: Kirigami
Differential Revision: https://phabricator.kde.org/D27515