VIDCS-2175: Should mitigate against publisher failures via permissions, hardware, or network failures by automatically retrying. (no ghost viewers, if retrying doesn’t work we fail))

[cpettet]

What is this PR doing?

Description

Currently, denying device permissions in the waiting room displays a prompt to change device permissions access. In the meeting room, denying device permissions destroys the publisher without notifying the user why.

After a Slack UX (or maybe it was during standup) review last year, we chose to redirect users to the goodbye page if they deny device permissions in the meeting room and to display an error message. To make it easier for our users, changing device permissions in the waiting room will force a page reload.

There's also a bit of light refactoring, a whole 'nother test file 🙃, and some additional unit tests.

Some screens of fixes

How should this be manually tested?

Repro'ing the issue

• checkout main
• go to meeting room
• disable either camera or microphone
• notice your publisher is destroyed with no warning

Testing the fix

Testing waiting room changes

• checkout this branch
• go to waiting room
• deny camera or mic permissions
• notice popup
• re-enable the denied permission
• notice page is reloaded and preview publisher is shown 🎉

Testing meeting room changes

• go to meeting room
• deny camera or mic permissions
• observe a redirect to the goodbye page, with a message detailing why you're redirected

What are the relevant tickets?

Resolves VIDCS-2175

[ ] Resolves a Known Issue.
[ ] If yes, did you remove the item from the docs/KNOWN_ISSUES.md?
[ ] Resolves an item reported in Issues.
If yes, which issue? Issue Number?
[ ] If yes, did you close the item in Issues?

[cpettet]

I'm not sure why TS didn't catch this, but this can be null when we see a publishing error. Maybe it's because we specify err: unknown and then use the instanceof operator?

vonage-video-react-app/frontend/src/Context/PreviewPublisherProvider/usePreviewPublisher/usePreviewPublisher.tsx

Lines 195 to 203 in a0c2287

	publisherRef.current = initPublisher(undefined, { insertDefaultUI: false }, (err: unknown) => {
	if (err instanceof Error) {
	publisherRef.current = null;
	if (err.name === 'OT_USER_MEDIA_ACCESS_DENIED') {
	console.error('initPublisher error: ', err);
	}
	}
	});
	addPublisherListeners(publisherRef.current);