VehicleActionDrawer.qml: Minor: Fix: Add the AnchoringChanges via states

This commit does

• Makes the code much more neater by the introduction of states
• The anchoring of the actions is at the bottom in mobile and at top for desktop
• This would make the UI more attractive for desktop

signed off by: Akshay Praveen Nair <akshaypraveennair11@gmail.com>