removeAllFields(stage) {
    const i18n = mi18n.current
    const opts = this.config.opts
    const fields = stage.querySelectorAll(this.formBuilder.fieldSelector)
    const markEmptyArray = []

    if (!fields.length) {
      return
    }

    if (opts.prepend) {
      markEmptyArray.push(true)
    }

    if (opts.append) {
      markEmptyArray.push(true)
    }

    if (!markEmptyArray.some(Boolean)) {
      stage.classList.add('empty')
      stage.dataset.content = i18n.getStarted
    }

    this.emptyStage(stage)
  }
Removes all fields from the form
@param {HTMLElement} stage to remove fields form
@return {void}