misc: fix webengine initialization

Change-Id: I1210f5ca8c98d80aea0bcc6f8591aba4a968b07b

src/app/main.cpp

@@ -103,6 +103,7 @@ main(int argc, char* argv[])
     QApplication::setOrganizationDomain(QStringLiteral("jami.net"));
     QApplication::setQuitOnLastWindowClosed(false);
     QCoreApplication::setApplicationVersion(QString(VERSION_STRING));
+    QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts, true);
     QApplication::setHighDpiScaleFactorRoundingPolicy(
         Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);