[Accessibility] Bind card size sliders to Ctrl + Scroll (#7338)

Ctrl+scroll over a card display now resizes the cards everywhere a card
size slider is shown, matching the standard way of resizing content.

CardSizeWidget learns to forward Ctrl+wheel events onto its slider via an
event filter that is installed on the display container and, when present,
on the scroll area's content widget so the resize intercepts the wheel
event before the view scrolls. The existing slider valueChanged wiring
then rescales the displayed cards.

Applied to the visual deck editor (per card group, covering flat and
overlapped layouts), visual database display, printing selector, sample
hand, visual and public deck storage, Archidekt previews and EDHRec card
displays.

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/interface/widgets/visual_deck_editor/visual_deck_editor_sample_hand_widget.cpp

@@ -48,6 +48,7 @@ VisualDeckEditorSampleHandWidget::VisualDeckEditorSampleHandWidget(QWidget *pare
     upperLayout->addWidget(flowWidget);
 
     cardSizeWidget = new CardSizeWidget(this, flowWidget);
+    cardSizeWidget->enableCtrlScrollResize(flowWidget);
     upperLayout->addWidget(cardSizeWidget);
 
     auto upperLayoutWidget = new QWidget(this);