Correctly set anchors using states instead of bindings.
Correctly set anchors using states instead of bindings.

Setting anchors with binding doesn't work as expected due to binding
evaluation issues (as written in the documentation).
Resolved using AnchorsChanges in a state.

Signed-off-by: Luca Ottaviano <ac21761be2b13c887f357fe7964bafc186a95b21@develer.com>

develersrl/demo-qml,develersrl/demo-qml