Lowered the edge swipe threshold for better detection

    <!-- Minimum swipe distance to catch the swipe gestures to invoke assist or switch tasks. -->

    <dimen name="navigation_bar_min_swipe_distance">48dp</dimen>

    <!-- The distance from a side of device of the navigation bar to start an edge swipe -->

    <dimen name="navigation_bar_edge_swipe_threshold">60dp</dimen>

    <dimen name="navigation_bar_edge_swipe_threshold">48dp</dimen>

    <!-- thickness (height) of the dead zone at the top of the navigation bar,

         reducing false presses on navbar buttons; approx 2mm -->