show shortcuts in context menus if possible

src/urh/main.py

@@ -1,17 +1,15 @@
 #!/usr/bin/env python3
 
 import locale
-import re
+import multiprocessing
 import os
+import re
 import sys
-import multiprocessing
-
 
 from PyQt5.QtCore import QTimer, Qt
 from PyQt5.QtGui import QPalette, QIcon, QColor
 from PyQt5.QtWidgets import QApplication, QWidget, QStyleFactory
 
-
 try:
     locale.setlocale(locale.LC_ALL, '')
 except locale.Error as e:
@@ -108,6 +106,11 @@ def main():
     app = QApplication(["URH"] + sys.argv[1:])
     app.setWindowIcon(QIcon(":/icons/icons/appicon.png"))
 
+    try:
+        app.styleHints().setShowShortcutsInContextMenus(True)
+    except AttributeError:
+        pass
+
     util.set_icon_theme()
 
     font_size = constants.SETTINGS.value("font_size", 0, int)