Inherit crossorigin on the injected web-vitals script

On pages that set Cross-Origin-Embedder-Policy: require-corp, the DAP tag
can carry a crossorigin attribute so its response satisfies the policy. The
dynamically injected web-vitals script never received that attribute, so it
was blocked from loading on such pages.

Read the crossorigin value from the DAP script tag (#_fed_an_ua_tag) and
apply it to the web-vitals script element when present. Regenerated the
minified bundle with the project's terser config.

Fixes #167

Signed-off-by: Arpit Jain <arpitjain099@gmail.com>

Author: arpitjain099