Rip of Maximize Video. Looks fine for the code, but there is an error. `chrome.runtime.onMessage.addListener` in `ytb.js` should be `browser.runtime.onMessage.addListener`for Firefox. Settings does not show text for some reason, html file is fine (using dark mode). The automatic method does not work on YouTube. Would have liked this to just full screen the video instead of this.

Does exactly what I needed it to do, thanks!