Add retry info to connect events

This adds retry info to the connecting and connected events. This helps
us give the user better status about the current state of their network
connection with the websocket.

src/client.ts

@@ -100,7 +100,7 @@ export type Event =
   | EventError;
 
 /** @category Client */
-export type EventConnectingListener = () => void;
+export type EventConnectingListener = (isRetry: boolean) => void;
 
 /**
  * The first argument is actually the `WebSocket`, but to avoid
@@ -124,6 +124,7 @@ export type EventOpenedListener = (socket: unknown) => void;
 export type EventConnectedListener = (
   socket: unknown,
   payload: ConnectionAckMessage['payload'],
+  wasRetry: boolean,
 ) => void;
 
 /**
@@ -637,7 +638,7 @@ export function createClient<
             retries++;
           }
 
-          emitter.emit('connecting');
+          emitter.emit('connecting', retrying);
           const socket = new WebSocketImpl(
             typeof url === 'function' ? await url() : url,
             GRAPHQL_TRANSPORT_WS_PROTOCOL,
@@ -760,7 +761,7 @@ export function createClient<
                 );
               clearTimeout(connectionAckTimeout);
               acknowledged = true;
-              emitter.emit('connected', socket, message.payload); // connected = socket opened + acknowledged
+              emitter.emit('connected', socket, message.payload, retrying); // connected = socket opened + acknowledged
               retrying = false; // future lazy connects are not retries
               retries = 0; // reset the retries on connect
               connected([