lookandfeel: Fix typo in user delegate
lookandfeel: Add a password field component
lookandfeel: Use new password field component for the greeter
lookandfeel: Move MessageBox.qml from loginmanager to components

This is shared among various look & feel components.
lookandfeel: Use Plasma palette and HawaiiLabel for message box
lookandfeel: Improved lock screen

Add greeter and password field to the lock screen.
lookandfeel: Add dummy data for logout
lookandfeel: Move IconButton.qml to components
lookandfeel: Logout screen