Apply existing QScreen::name() workaround for Windows to new code
e5fb03b6 added a workaround for a Qt bug on Windows that makes QScreen::name() return garbage.
21e02655 added new un-worked-around usages of QScreen::name() which effectively re-introduces the bug that the old code was fixing on Windows.
This commit re-applies the workaround to the new code using a compiler macro.
BUG: 429943 FIXED-IN: 5.101