Add the gesture nav tutorial menu page

- Added the gesture tutorial menu page (launched using an intent extra)
- tutorial steps now launch the menu when complete if launched from the menu
- the new default set of tutorial steps is home -> back -> overview. this is to handle the case where an intent is launched that is meant to launch the tutorial menu, but ENABLE_NEW_GESTURE_NAV_TUTORIAL is false

Flag: ENABLE_NEW_GESTURE_NAV_TUTORIAL
Bug: 274463555
Test: Ran the tutorial and menu on a large screen, foldable and phone
Change-Id: I2eb5f658115be4d5ecb0233a8f09d22efe6ebadc