twitter profile picture upload not working with TBB 7.0
tested with: https://people.torproject.org/~gk/builds/6.5.2-build1/
reproducer:
- create a twitter account or use an existing
- upload a twitter profile picture
- "success" info shows up
- click save changes
- the picture is not shown on the users profile (avatar)
if you need a test picture: https://files.mastodon.social/accounts/avatars/000/045/306/original/eb8429cd0f23d7e8.jpg