In EditablePage in React templateAnnotations/templateDefinitions can not be null/undefined.

In area addComment is always run
https://git.magnolia-cms.com/projects/MODULES/repos/frontend-helpers/browse/packages/react-editor/src/component/EditableArea/EditableArea.js#37

and openComment is always assigned:
https://git.magnolia-cms.com/projects/MODULES/repos/frontend-helpers/browse/packages/react-editor/src/component/EditableArea/EditableArea.js#62

Meaning this code is run: templateAnnotations[content['@path']

So to make it work we pass templateAnnotations as empty object.

Problem is that in many places in code we can find things like
if (templateAnnotations)
eg: https://git.magnolia-cms.com/projects/MODULES/repos/frontend-helpers/browse/packages/react-editor/src/component/EditablePage/EditablePage.js#58

And in JS if ({}) is true hence this check is not working as it should.

Lets allow passing templateAnnotations/templateDefinitions as null/undefined so all the if against it work