[SER-1199] - Close the guides modal with ESC key press

[LaNinja06]

No description provided.

[pnrgenc]

Hi Gia,
Great job, I can only suggest this:
When adding an event listener in vue.js, we usually add it mounted and remove this listener before destroying. This way we can prevent possible memory leaks.
You may get better results if you try the following way

  mounted: function() {
             document.addEventListener('keydown', this.handleEscapeKey);
   },
  destroyed: function() { // or beforeDestroy
             document.removeEventListener('keydown', this.handleEscapeKey);
   },
   methods: {
     handleEscapeKey: function(event) {
                 if (event.keyCode === 27 || event.key === 'Escape') {
                     this.onClose()
                 }
             }
  }

If you're curious, life cycles in vue.js: https://v2.vuejs.org/v2/guide/instance

[LaNinja06]

Thank you for the suggestions, Pinar! I modified it as mentioned. Now, it looks more aligned with the existing code. :)