Add a local "enumeration" (object) for the two possibly map types
of interest: SATELLITE and STREET.
Use SATELLITE by default.
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
The root element is now an Item and also doesn't have explicit
anchors and dimensions as these will be handled by the parent:
- on desktop: a QQuickWidget
- on mobile: any QML based QQuickItem
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>