Implement esc-close when text input in focus

[jacobg]

Is your feature request related to a problem? Please describe.
Currently the esc-close option only works when the menu is in focus. If the text input is in focus, then esc-close doesn't do anything.

Describe the solution you'd like
Please close menu when the esc key is pressed while text input in focus.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

[jacobg]

Workaround:

onMounted(() => {
  const inputEl = picker.value.$el.querySelector('.dp__input')
  // https://github.com/Vuepic/vue-datepicker/issues/1038
  inputEl.addEventListener('keydown', event => {
    if (event.key === 'Escape') {
      picker.value.closeMenu()
    }
  })
})