Add standard Alt+Return shortcut for Properties menu item

app/fileopscontextmanageritem.cpp

@@ -177,6 +177,7 @@ FileOpsContextManagerItem::FileOpsContextManagerItem(ContextManager* manager, QL
     mShowPropertiesAction = file->addAction(QStringLiteral("file_show_properties"), this, SLOT(showProperties()));
     mShowPropertiesAction->setText(i18n("Properties"));
     mShowPropertiesAction->setIcon(QIcon::fromTheme(QStringLiteral("document-properties")));
+    mShowPropertiesAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_Return));
 
     mCreateFolderAction = file->addAction(QStringLiteral("file_create_folder"), this, SLOT(createFolder()));
     mCreateFolderAction->setText(i18n("Create Folder..."));

part/gvpart.cpp

@@ -78,9 +78,11 @@ GVPart::GVPart(QWidget* parentWidget, QObject* parent, const QVariantList& /*arg
 
     QAction * action = new QAction(actionCollection());
     action->setText(i18nc("@action", "Properties"));
+    action->setShortcut(QKeySequence(Qt::ALT + Qt::Key_Return));
     connect(action, &QAction::triggered, this, &GVPart::showProperties);
     actionCollection()->addAction(QStringLiteral("file_show_properties"), action);
 
+
     KStandardAction::saveAs(this, SLOT(saveAs()), actionCollection());
 
     new GVBrowserExtension(this);