[Fonts] Migrate DeckList and InterfaceDefault surfaces to theme roles (#7539)

* [Fonts] Migrate DeckList and InterfaceDefault surfaces to theme roles

* [Fonts] Drop unused lambda captures in font-refresh handlers

* [Fonts] Fix pixel sizes and game overlay fonts from review

- Set the sizes the stylesheets carried with setPixelSize() rather than
  setPointSize(): home buttons (34), banner (24), home group box (20),
  the placeholder labels (14), the analytics drag handle (10), the EDHREC
  navigation buttons (24), the user info popup (11/14/11/10/11) and the
  game overlays (14/16/12). Points at 96 DPI were ~33% larger.
- The drag/total counters and tally columns keep the monospace family the
  stylesheets set, so digit widths stop changing as counts tick and
  white-space: pre stays aligned.
- applyDeckListFont() drops the cached tally rows before re-measuring, so
  previewing a larger DeckList font no longer leaves the tally clipped.
- Tally labels and the constructor/fontsChanged pairs in the shared-deck
  preview, quick setup, analytics panel, home box and public decks build
  their font once in a local lambda instead of twice.

---------

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

cockatrice/src/interface/widgets/general/display/banner_widget.cpp

@@ -1,9 +1,11 @@
 #include "banner_widget.h"
 
 #include "../../../pixel_map_generator.h"
+#include "../../../theme_manager.h"
 
 #include <QBrush>
 #include <QColor>
+#include <QFont>
 #include <QHBoxLayout>
 #include <QLinearGradient>
 #include <QPainter>
@@ -28,7 +30,9 @@ BannerWidget::BannerWidget(QWidget *parent, const QString &text, Qt::Orientation
     if (transparency > 50) {
         textColor = " color: white;";
     }
-    bannerLabel->setStyleSheet("font-size: 24px; font-weight: bold;" + textColor);
+    bannerLabel->setStyleSheet(textColor);
+    applyInterfaceDefaultFont();
+    connect(themeManager, &ThemeManager::fontsChanged, this, &BannerWidget::applyInterfaceDefaultFont);
 
     layout->addWidget(iconLabel);
     layout->addWidget(bannerLabel);
@@ -56,6 +60,16 @@ void BannerWidget::setText(const QString &text) const
     bannerLabel->setText(text);
 }
 
+void BannerWidget::applyInterfaceDefaultFont()
+{
+    // Family comes from the InterfaceDefault theme role; the 24px size and
+    // bold weight previously carried by the stylesheet stay caller-side.
+    QFont bannerFont = themeManager->appFont(AppFont::InterfaceDefault);
+    bannerFont.setPixelSize(24);
+    bannerFont.setWeight(QFont::Bold);
+    bannerLabel->setFont(bannerFont);
+}
+
 void BannerWidget::setClickable(bool _clickable)
 {
     clickable = _clickable;