feat(react): coverComponentProps

[AinaVendrell]

Remember to tag the PR with WIP tag if it's not ready to be merged.
Reference

Description

Add coverComponent props

Context

Since the coverComponent is shown automatically the first time that a user interacts with the bot there was no possibility to pass properties to this component

Approach taken / Explain the design

Converts the coverComponent to an object that contains a component and props

To documentate / Usage example

Instead of defining the cover component as:

import CustomCover from '../webchat/custom-cover'

export const webchat = {
  coverComponent: CustomCover
} 

Now it can be defined as:

import CustomCover from '../webchat/custom-cover'

export const webchat = {
  coverComponent: {
    component: CustomCover,
    props: { ... },
  },
} 

Testing

The pull request...

• has unit tests
• has integration tests
• doesn't need tests because... [provide a description]

[asastre]

@AinaVendrell when you say in the description 'Now it can be defined as:' I thought that this new declaration of the coverComponent was optional and you could declare it both ways, the old and the new one, but looking into the code I can see only de new declaration working.

Since I've seen it's possible to load de correct configuration of Contentful's plugin inside the coverComponent using an environment variable and without needing to send the configuration parameters through props, I don't know if this new feature it's a must to be implemented.
In my opinion, I think it's great to have de possibility to send information to the coverComponent through props, but since it's a thing that maybe won't be much used, maybe it should be nice to have backwards compatibility and ensure that the old declaration of the coverComponent will work too.

What do you think @ericmarcos, @dpinol, @vanbasten17 ?

[dpinol]

@AinaVendrell can you follow this up?

[ericmarcos]

@AinaVendrell I don't understand the utility of this. What can you achieve with this feature that you couldn't do before?

[vanbasten17]

@asastre I also think it's nice to be able to pass props to the component. Maybe it's not very hard to implement a way to make this backward-compatible by defining the old way and having also this new definition. If it's not affordable, then I'll preserve the old compat.

[asastre]

Nice 👏!!