fix - no flameshot icon in the taskbar for 'Latest uploads' and 'Open launcher' widgets

(cherry picked from commit c662e3e765df31798dd62f8b9a26cddf1a0aa8af)

src/widgets/historywidget.cpp

@@ -20,6 +20,7 @@
 HistoryWidget::HistoryWidget(QWidget* parent)
   : QDialog(parent)
 {
+    setWindowIcon(QIcon(":img/app/flameshot.svg"));
     setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
     setWindowTitle(tr("Latest Uploads"));
     setFixedSize(800, this->height());