Added backwards compatibility to Mixpanel SDK features

New updates to use the latest Mixpanel SDK library functions, which should help reduce error rates.

Mixpanel Data Inspector now supports all Mixpanel installations, including npm/yarn installations! Mixpanel can now also be used via the devtools page ("Inspect Element"). For more information, please check our blog post here: https://docs.mixpanel.com/changelogs/2026-01-20-mixpanel-data-inspector-v2