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

(cherry picked from commit c662e3e765df31798dd62f8b9a26cddf1a0aa8af)

src/widgets/capturelauncher.cpp

@@ -37,6 +37,7 @@ CaptureLauncher::CaptureLauncher(QDialog* parent)
   , m_id(0)
 {
     setAttribute(Qt::WA_DeleteOnClose);
+    setWindowIcon(QIcon(":img/app/flameshot.svg"));
     m_imageLabel = new ImageLabel(this);
     bool ok;
     m_imageLabel->setScreenshot(ScreenGrabber().grabEntireDesktop(ok));