Sets the button type to "button"

[dkastl]

Problem

When the designer is embedded in a form element, clicking on the sidebar expand > button or the "Add new field" button submits the form.

Proposed solution

When the buttons are declared as type="button" clicking does not trigger a form submit.

[hand-dot]

Hey @dkastl ,
Thank you, I'd like to merge this PR, can you update snapshot test?
you just run npm test -- -u in the ui package.

[hand-dot]

@dkastl
Thank you for your contribution.

We are currently working on version 3. This fix is planned to be incorporated in version 3 and beyond.

If you want to use this merged change immediately, please create a fork for yourself and use that.

[dkastl]

Thanks a lot @hand-dot !
I'm just exploring at the moment and I'm looking forward to version 3, because custom schema is probably what I need as well.