add event bubbling to submit event (fix for React 17 and up)

[elad-ivanir]

Reasons for making this change

Programmatic submittng does not work for React 17+, due to changes in event delegation in React 17.
I made sure my fix works for earlier versions of React too.

linked issue - #2551

Checklist

• I'm updating documentation
  • I've checked the rendering of the Markdown text I've added
• I'm adding or updating code
  • I've added and/or updated tests
  • I've updated docs if needed
• I'm adding a new feature
  • I've updated the playground with an example use of the feature

[mucluck]

@epicfaace this change will be merged?

[epicfaace]

Thanks for the PR. I'm going to close this for now -- see #2104 (comment) -- we need someone to look into what is the root cause of the issue before we can accept a fix. Not sure if bubbles: true is the right fix that gets to the root of the problem.