text: Title: Lots of dynamic notification banners when I invite a couple people on the doc 
  Body: ## Feature Request
  
  **Is your feature request related to a problem or unsupported use case? Please describe.**
  If I invite a few people on the doc, one notification banner appears for each user. Which is annoying
  
  **Describe the solution you'd like**
  Can we make a single notification for the whole group or just change the UX. 
  Or better if invitations went through, just close the pane and notify me if there is an error.
  