qt: Disable alt key menu navigation with style override

src/qt/qt_styleoverride.hpp

@@ -0,0 +1,16 @@
+#ifndef QT_STYLEOVERRIDE_HPP
+#define QT_STYLEOVERRIDE_HPP
+
+#include <QProxyStyle>
+
+class StyleOverride : public QProxyStyle
+{
+public:
+    int styleHint(
+        StyleHint hint,
+        const QStyleOption *option = nullptr,
+        const QWidget *widget = nullptr,
+        QStyleHintReturn *returnData = nullptr) const override;
+};
+
+#endif