🐛 [firestore-translate-text] can not translate array field

### What feature would you like to see?

There has a problem that the extention[firestore-translate-text] can not translate an array object like under "second":
input field:
```
{
first: "who are you?",
second: [
{
title: "about us",
summary: "We are top 100 web developer.",
},
{
title: "contact us",
summary: "You can contact us from email.",
},
],
}
```