Homepage/onboarding feedback

This task is for tracking issues that will be addressed after the new homepage/onboarding are deployed.

• Birthday select arrows should be grey

• All of the inputs have box shadows on the mockup

• Channels selector and group selector should have 12 results listed by scrolling with 4 visible.

• Display group avatars in onboarding

• First group chosen should only appear once on group bar onboarding_groups

• After completing onboarding new user lands on Discovery page

• When a new user lands on the discovery page, preferred tagss are switched on by default onboarding_discovery