declarative: Add a QML extension object for accessing the margins property
Otherwise we get the following error message: Property "margins" with type "QMargins", which is not a value type
Signed-off-by: Victoria Fischer victoria.fischer@mbition.io
Otherwise we get the following error message: Property "margins" with type "QMargins", which is not a value type
Signed-off-by: Victoria Fischer victoria.fischer@mbition.io