fix: Use the more reliable timeOrigin (#3398)
fix: Use the more reliable timeOrigin (#3398)

* fix: Use the more reliable timeOrigin

- We want to still avoid using date.now() if possible, but this way if
  either or both performance apis are reliable, we use the more reliable
  one instead of still defaulting to timeOrigin
getsentry/raven-js,getsentry/raven-js,getsentry/raven-js,getsentry/raven-js