Add shortcut for "Ban peer permanently" function

PR #18576.

src/gui/properties/peerlistwidget.cpp

@@ -182,6 +182,8 @@ PeerListWidget::PeerListWidget(PropertiesWidget *parent)
     handleSortColumnChanged(header()->sortIndicatorSection());
     const auto *copyHotkey = new QShortcut(QKeySequence::Copy, this, nullptr, nullptr, Qt::WidgetShortcut);
     connect(copyHotkey, &QShortcut::activated, this, &PeerListWidget::copySelectedPeers);
+    const auto *deleteHotkey = new QShortcut(QKeySequence::Delete, this, nullptr, nullptr, Qt::WidgetShortcut);
+    connect(deleteHotkey, &QShortcut::activated, this, &PeerListWidget::banSelectedPeers);
 }
 
 PeerListWidget::~PeerListWidget()