Add code examples for AppStore-like expanding cards

# Feature Request

**Ionic version:**

[x] **5.x**

**Describe the Feature Request**

An AppStore like expanding card component would be great.

**Describe Preferred Solution**

The IonCard Component should be clickable and should be expanding. A component like `ion-card-detailed-content` could be placed in IonCard, and on click IonCard should expanding, and `ion-card-detailed-content` should be visible.

**Describe Alternatives**

At the moment, there is no alternative as far as I know.

**Additional Context**
Here is an example of another mobile framework (of course ionic is better.): Just click on `cards expandable`: [https://framework7.io/kitchen-sink/core/?theme=ios](https://framework7.io/kitchen-sink/core/?theme=ios)

No repository files or tests are named. Start by reviewing the Ionic documentation and the linked Framework7 expandable-card example, then determine whether the work is documentation examples or an IonCard component change; done should be a documented, working AppStore-like expanding-card example or a clearly scoped component implementation.

Escrito por el modelo de indexación a partir del texto del issue.