Edhrec tab (#5512)

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
Co-authored-by: Zach H <zahalpern+github@gmail.com>

cockatrice/src/client/ui/widgets/general/display/banner_widget.h

@@ -0,0 +1,40 @@
+#ifndef BANNER_WIDGET_H
+#define BANNER_WIDGET_H
+
+#include <QLabel>
+#include <QWidget>
+
+class BannerWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit BannerWidget(QWidget *parent,
+                          const QString &text,
+                          Qt::Orientation orientation = Qt::Vertical,
+                          int transparency = 80);
+    void mousePressEvent(QMouseEvent *event) override;
+    void setBuddy(QWidget *_buddy)
+    {
+        buddy = _buddy;
+    }
+    QString getText() const
+    {
+        return bannerLabel->text();
+    }
+
+protected:
+    void paintEvent(QPaintEvent *event) override;
+
+private:
+    QLabel *bannerLabel;
+    Qt::Orientation gradientOrientation;
+    int transparency; // Transparency percentage for the gradient
+    QWidget *buddy;
+signals:
+    void buddyVisibilityChanged();
+private slots:
+    void toggleBuddyVisibility() const;
+};
+
+#endif // BANNER_WIDGET_H