[Trackpad] Gesture navigation in 3-button mode

Back gesture will be in a separate change

Bug: 279948218
Test: https://recall.googleplex.com/projects/3388b17c-d22f-46f8-b140-a102690377b4/sessions/0b8e838a-89b0-4451-ad44-df2916db877d
Change-Id: I1f14ca873efa33684e36ac1f0f72d766815752ae