feat: add Open Graph sharing metadata to program certs#2858

deborahgu merged 2 commits intomasteropenedx/credentials:masterfrom

dkaplan1/APER-3403_replicate-social-media-opengraph-improvements-for-program-certificatesopenedx/credentials:dkaplan1/APER-3403_replicate-social-media-opengraph-improvements-for-program-certificatesCopy head branch name to clipboard