Some quality of life improvements for search

1. Type "in: <channel>" to find casts with hello in that channel 

2. Type "from: <username> hello" to find casts with hello from that user

Technowatermelon. Elder Millenial. Building Farcaster. 

nf.td/varun

can I be honest
I didn't know from: was a thing until a few days ago because I'm so used to "@username search text"

I just presumed search was broken from the get go for months lol

can we just stick to twitter search patterns 

or add a placeholder in the search bar for search keyword descriptions

cookin' @askgina.eth https://askgina.ai, @consensys class '17