fix: avoid rerender on uncomparable #543
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I used this editor on one of my projects, and I also used wdyr (https://github.com/welldone-software/why-did-you-render) to detect unnecessary render. Turns out wrapperProps has default object which causes uncomparable re-render every time a new editor is shown on the screen.
Fixed by undefined as default wrapperProps value on parent components and only expand on the innermost
<section>
tag when it is actually used so that outer components does not render again.