message: plugin-equations: review dependencies
diff: -import { EquationsEditor } from './editor'
  import { StateType, StatefulPlugin } from '@edtr-io/core'
  import { createIcon, faEquals } from '@edtr-io/editor-ui'
  +import { EquationsEditor } from './editor'
  +
  export const StepProps = StateType.object({
  left: StateType.child(),
  right: StateType.child(),
  