Bug Description

Please describe.
The Oculus Browser isn't being properly detected in the Javascript SDK. This events generated are marking the browser as Chrome instead of Oculus.

How to reproduce

Note, I wasn't able to properly reproduce this as I don't have an Oculus headset.

1. Set up the Javascript SDK
2. Create a Posthog event while using an Oculus headset
3. Review the event in Posthog
4. Notice the browser is set at Chrome but the user agent is OculusBrowser

Additional context

• From: https://posthoghelp.zendesk.com/agent/tickets/51652
• Specific event information can be found in the above ticket
• The detect browser function here should be updated to handle this.
• Oculus Browser user agent lists can be found here

Debug info

Session: https://us.posthog.com/project/sTMFPsFhdP1Ssg/replay/019c95c2-428a-75ee-8add-0d43d01c17d6?t=198
Admin: http://go/adminOrgUS/019b2a09-0d50-0000-5619-3a94a0e1c752 (project ID 267556)