Onboarding Wizard - Channel Tagging does not tag channels
### Summary
Onboarding Wizard when you choose your preferred hashtags, those hashtags are not used to tag your channel. This will also help in getting channels to register hashtags for the initial channel search to be more effective.
### Steps to reproduce
1. Register a new channel
2. Select hashtags in the onboarding wizard
3. Only updates your preferred hashtags
### Platform information
Browser
### What is the current *bug* behavior?
Only updates your preferred search hashtags
### What is the expected *correct* behavior?
Should update you channel profile hashtags as well.
### Relevant logs and/or screenshots

- [ ] new onboarding should tag the user's channel with their selected channels
- [ ] new onboarding should populate their feed selectors (already working, but just to verify that it's doing what it's supposed to)
issue