The `withPersonaOptions(personaOptions)` configuration method allows you to give the conversation participants a name
and an avatar. And for the case of the assistant, you can also specify a _tagline_ that will be displayed below the
assistant's name in the initial screen.

> * Type: `PersonaOptions`

```tsx
interface PersonaOptions {
    assistant?: AssistantPersona,
    user?: UserPersona,
}

interface AssistantPersona {
    name: string;
    avatar: string | Readonly<HTMLElement>;
    tagline?: string;
}

interface UserPersona {
    name: string;
    avatar: string | Readonly<HTMLElement>;
}
```

> * Usage:
