Function collection_snapshot 

fn collection_snapshot(
    app: &AppRuntime,
    browser: &mut Browser,
    target: &str,
    expected: &str,
    source_profile: &str,
    poster_budget: &mut usize,
    date_budget: &mut usize,
) -> Result<Value, SocialError>

Gives hydrated provider posts time to appear and merges three bounded rendered views without claiming a complete feed.