Fix default "hello world" qml file to not use anchors

Some things like reparenting do not work right now in the Design mode
for anchored items, and we are missing a way to inform the user.
Using absolute positions for positioning therefore avoids confusion
for first time users.

src/plugins/qmlprojectmanager/qmlnewprojectwizard.cpp

@@ -109,8 +109,9 @@ Core::GeneratedFiles QmlNewProjectWizard::generateFiles(const QWizard *w,
         << "    width: 200" << endl
         << "    height: 200" << endl
         << "    Text {" << endl
+        << "        x: 66" << endl
+        << "        y: 93" << endl
         << "        text: \"Hello World\"" << endl
-        << "        anchors.centerIn: parent" << endl
         << "    }" << endl
         << "}" << endl;