Add taskbar pinning education for new users and update other steps

This change updates the current transient taskbar education to include
the pinning feature and additional updates to Lottie animations. It also
removes the tutorial that teaches users to switch navigation modes. The
pinning education is gated behind an additional pinning education static flag.

Fixes: 302588455,300161174
Test: Went through taskbar education for persistent and transient
taskbar with the flag on and off.
Flag: ACONFIG com.android.launcher3.enable_taskbar_pinning DISABLED

Change-Id: I836467091bfe694eee89ac46c4be597c490e1b3f