Migrate from QtQuick.Controls 1.x to QtQuick.Controls 2.x. Updated QMLTermWidget submodule.

app/qml/menus/ShortContextMenu.qml

@@ -0,0 +1,28 @@
+/*******************************************************************************
+* Copyright (c) 2013-2021 "Filippo Scognamiglio"
+* https://github.com/Swordfish90/cool-retro-term
+*
+* This file is part of cool-retro-term.
+*
+* cool-retro-term is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*******************************************************************************/
+
+import QtQuick 2.2
+import QtQuick.Controls 2.3
+
+Menu{
+    id: contextmenu
+    MenuItem { action: copyAction }
+    MenuItem { action: pasteAction }
+}