Usage
// Focus a tab with title
focusTab({title: 'Example Domain'})
document.dispatchEvent(new CustomEvent('focusTab', {'detail': {title: 'Example Domain'}}))
// Focus a tab with url
focusTab({url: 'http://example.com/'})
document.dispatchEvent(new CustomEvent('focusTab', {'detail': {url: 'http://example.com/'}}))
// Focus a tab with wildcard
focusTab({url: 'https://www.google.com/search*'})
document.dispatchEvent(new CustomEvent('focusTab', {'detail': {url: 'https://www.google.com/search*'}}))
First argument is queryInfo object.
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/tabs/query#Parameters 
