New settings for channel owners

- Turn off the Recent feed
- Toggle the Main feed algo between
- Moderation has to be on to use

Prioritized list of channels pain points

1. Moderation set up is confusing / high friction
2. Inability to turn off Recent feed
3. Inability to control algo of Main feed
4. Lack of hide / ban (exists through mod tools, but high friction to set up)
5. Lack of co-hosts (similarly, exists in mod tools)

Agree? Disagree?

2 and 3 are now fixed

https://warpcast.com/dwr.eth/0x074416f6