Update the colors for gesture navigation tutorial.

This change introduces tokens for the lottie animations so that the
colors can be changed. In this change, the home gesture tutorial colors have
been updated to match the updated design at http://shortn/_VvbigpP0ys

Flag: ENABLE_NEW_GESTURE_NAV_TUTORIAL
Bug: 279823249
Test: Manually went through the tutorial on handheld, foldable, and tablet
Change-Id: Id2270cea41345e8f4d330097e10a7dae2b00032a