add og:image:alt for media attachments in embeds (#10779)
add og:image:alt for media attachments in embeds (#10779)


rainyday/mastodon,ikuradon/mastodon,gol-cha/mastodon,pso2club/mastodon,d6rkaiz/mastodon,pinfort/mastodon,imas/mastodon,pso2club/mastodon,kazh98/social.arnip.org,koba-lab/mastodon,Nyoho/mastodon,gol-cha/mastodon,Nyoho/mastodon,imas/mastodon,kazh98/social.arnip.org,rainyday/mastodon,pinfort/mastodon,pinfort/mastodon,d6rkaiz/mastodon,d6rkaiz/mastodon,gol-cha/mastodon,koba-lab/mastodon,Nyoho/mastodon,kazh98/social.arnip.org,koba-lab/mastodon,imas/mastodon,kazh98/social.arnip.org,ikuradon/mastodon,imas/mastodon,gol-cha/mastodon,Nyoho/mastodon,rainyday/mastodon,pso2club/mastodon,pinfort/mastodon,ikuradon/mastodon,rainyday/mastodon,koba-lab/mastodon,d6rkaiz/mastodon,pso2club/mastodon,ikuradon/mastodon