Does not block tweets in the "Tweet" modal if you are also composing a tweet in the inline composition input above the newsfeed

[aweary]

Steps to Reproduce

• Open Twitter
• Start a tweet from the inline composition input, add an image
• Click the Tweet button in the left column
• Start composing a new tweet with an image

Notice that it won't disable the Tweet button in this modal. I think we just need to disable all instances of the Tweet button, rather than the first one (i.e., change querySelector to querySelectorAll and iterate through every button)

[Lewiscowles1986]

Do you know if it is the button-click, element selectors or other mechanism causing the issue?