Windows: Fix initial FloatingWindow size in HDPI

When:
- Screen A (100%), B (150%)
- MainWindow on screen B
- Trying to open a floating window on screen A (via setGeometry())

The Qt Windows QPA would error out when setting the geometry and it
would be too small.

The solution is to call setGeometry() before we create the QWindow.

Too much of an edge case to risk putting this on 1.3 branch.
Will be in 1.4.0.

Fixes #191

src/FrameworkWidgetFactory.cpp

@@ -87,12 +87,12 @@ Layouting::Separator *DefaultWidgetFactory::createSeparator(Layouting::Widget *p
 
 FloatingWindow *DefaultWidgetFactory::createFloatingWindow(MainWindowBase *parent) const
 {
-    return new FloatingWindowWidget(parent);
+    return new FloatingWindowWidget(QRect(), parent);
 }
 
-FloatingWindow *DefaultWidgetFactory::createFloatingWindow(Frame *frame, MainWindowBase *parent) const
+FloatingWindow *DefaultWidgetFactory::createFloatingWindow(Frame *frame, MainWindowBase *parent, QRect suggestedGeometry) const
 {
-    return new FloatingWindowWidget(frame, parent);
+    return new FloatingWindowWidget(frame, suggestedGeometry, parent);
 }
 
 DropIndicatorOverlayInterface *DefaultWidgetFactory::createDropIndicatorOverlay(DropArea *dropArea) const