stack: Add constructor
stack: Allow pages to have name and title on push
stack: Fix indentation
stack: Add Back button
window: Remove Back button

Moved it to Stack.
stack: Add property to hide the Back button
stack: Allow pop of last item
view: Hide close button on selection mode
view: Correct comment on search mode binding
view: Enable selection mode on right-click

Right-click will work like left-click if selection mode is enabled.