Update the name of Twitter

[tobifjellner]

In wp-content/plugins/wporg-learn/inc/form.php there's a mention of "Twitter" that needs to be updated.

[kathrynwp]

Hi @tobifjellner - thanks for the report. In order to better prioritize this issue, could you please let me know if you're seeing "Twitter" or an old logo anywhere on the front end, in the new Learn WP theme? You can preview the new theme by clicking the "Preview the new theme" link at the top left, either while logged in or out. If you find an instance on the front end, could you please provide a screenshot and a link to the page? Thanks!

[tobifjellner]

I just saw it as a text reference while translating strings for meta/learn. Didn't actually browse the site. So this specific occurrence should be very easy to fix. But I don't know if there somewhere else are any logos or similar.