Livechat WIdget API error in pageVisited Method

Description:

pageVisited() API method fires on page load but throw a TypeError since rid is not defined if there is not yet an existing chat.

hooks.js:37 Uncaught TypeError: Cannot read properties of null (reading '_id')
    at pageVisited (hooks.js:37:26)
    at Hn (hooks.js:185:23)

Relevant code:

pageVisited(info) {
	if (info.change === 'url') {
		Triggers.processRequest(info);
	}

	const { token, room: { _id: rid } = {} } = store.state;
	const { change, title, location: { href } } = info;

	Livechat.sendVisitorNavigation({ token, rid, pageInfo: { change, title, location: { href } } });
}

Steps to reproduce:

1. Copy / Paste livechat widget js onto a webpage.
2. Load the page.

Expected behavior:

In the past pageVisted() would fire on page load and when a customer initiates a new chat, the chat agent can see the originating page.

Actual behavior:

Now this code is broken so livechat agent can't see the url of the page where chat is initiated unless the customer navigates after a chat has been created.

Server Setup Information:

• Version of Rocket.Chat Server: 5.1.2
• Operating System: Ubuntu 20.04.5
• Deployment Method: Manual
• Number of Running Instances: 1
• DB Replicaset Oplog: n/a
• NodeJS Version: 14.19.3
• MongoDB Version: 5.0.12

Client Setup Information

• Desktop App or Browser Version: n/a - applies to all tested browsers
• Operating System: n/a - applies to all

Start in hooks.js at the pageVisited entry point and reproduce the widget loading before a chat exists. Trace the store state and Livechat.sendVisitorNavigation call; done means page load no longer throws a TypeError and the originating page remains visible to the agent when a chat is initiated.