React: IonTabButton cannot be wrapped for use with IonTabBar

**URL**
https://ionicframework.com/docs/api/tab-bar

**What is missing or inaccurate about the content on this page?**

It seems that `IonTabButton` cannot be wrapped in another component; `IonTabBar` won't recognize it.

This should be noted in the documentation.

**Background**

My app puts the `IonTabButton` in a different order depending on whether the user is right-handed or left-handed.

Example of code that doesn't work (tabs are not displayed):

```
return (

{children}





```

And here is a wrapper component:

```
const TabButtonHelp: React.VFC = () => (



Help


);
```

This does work:

```
return (

{children}




Help




```

Start with the IonTabBar documentation at https://ionicframework.com/docs/api/tab-bar and review how IonTabButton usage is described. Document that wrapping IonTabButton in another component prevents IonTabBar from recognizing it, using the reported wrapper example; done when the limitation is clear to readers.

Scritto dal modello di indicizzazione a partire dal testo della issue.