Constant fungus::net::agent::IPAD_IOS12

pub const IPAD_IOS12: &str = "Mozilla/5.0 (iPad; CPU OS 12_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 EdgiOS/44.5.3 Mobile/15E148 Safari/605.1.15";