read_loop now happens on its own thread, replace WlClient::new() with blocking run()

src/main.rs

@@ -6,7 +6,7 @@ use wayland::wl_client::WlClient;
 mod graphics;
 
 fn main() -> Result<(), Box<dyn Error>> {
-    let mut wl_client = WlClient::new()?;
+    let mut wl_client = WlClient::run()?;
 
     Ok(())
 }