Include Alt Text for images from Twitter

[adamjohnson]

Steps to reproduce the issue

I have made a small test case on Codepen that outlines the issue. Right click and inspect any image in the timeline.

Results

Right now, the alternative text for images from Twitter is hardcoded as Image from Tweet.

Desired results

Does the Twitter API include alt text for images? Twitter allows users to customize alt text now. It would be a huge accessibility win if images on Twitter with alt text could be pulled with their customized alt text by Twitter Post Fetcher.