Use Core functionality to obtain and save data

[chrishall0]

(http://bigbite.im/v/ju8b5S)

This PR -

• Uses core functionality to obtain and save data to correct DB value to work with WP FSE
• Maps data to dynamically render values from object.
• Renders options in navigator component
• Maps values to suitable components
• Renders preview based on selected settings

[scottblackburn]

I have a feeling prettier might not be configured correctly on this but should be an easy fix, grab me next week and we should be able to sort it pretty quickly

[g-elwell]

@chrishall0 great work so far!

I've added a few comments which relate to changes that look like they may need to be applied across the codebase

• sorting dependencies
• avoid accessing wp global
• use multiline/JSDoc formatted comments
• avoid disabling eslint
• destructure props in components

More details are in the specific comments, but can you go over all files and ensure any fixes are applied across the board?

I'm also getting quite a few eslint errors through the build tools. Mostly related to proptypes and prop destructuring. Can you take a look at these?

To avoid slowing this down I think we could create a separate PR to add prop types but we should aim to get these other things updated on this initial PR if possible.

[g-elwell]

LGTM 🙌