Ignore launch_adjacent when launch from App picker

When a resolver activity is in split screen, starting an activity
with launch_adjacent from resolver activity introduces a poor user
experience for split screen mode. This CL keeps the resolver
activity and the new activity on the same side of spit.

Bug: 289909905
Test: 1. Make split (A|ResolverActivity)
      2. Launch Activity B from ResolverActivity
      3. Verfiy split (A|B)
Change-Id: Id22ce393523607aa20d4d00954cca6aaea669efa