- Create helper functions to determine if running in embedded mode, and the target window for dashboard messages
- Wasn't sure where to put this, hopefully choice the right location
- isEmbedded `window.top !== window` weirdly didn't work in cypress runner, so now we check if window.top has ember available (only scenario where isEmbedded is false)
- window used for messaging dashboard is now window.parent, window.top can be cypress runner