Add button to open live chat popup in browser

[ozrendev]

Pull Request Type

• [ ] Bugfix
• [x] Feature Implementation
• [ ] Documentation
• [ ] Other

Related issue

closes #1721

Description

Adds a button that opens a new browser window with the current video live chat

Screenshots

Testing

Go to a video that is listed as "Live" Click on the "Popout chat" button See that the current video live chat is opened in a new browser window

Additional context

h4 label was replaced with span because of margin was stretching button hover animation the margin is now applied to the container, replicating the same size as before but the height is ~10px less now