Add "alt" attribute to avatars

hgence

After running a check using Google's Lighthouse https://chrome.google.com/webstore/detail/lighthouse/blipmdconlkpinefehnmjammfjpmpbjk

askvortsov

hgence seems like a good idea to me! Could you open up a github issue?

hgence

askvortsov opened here - flarum/core2256