[Web] Bug on new versions "ReferenceError: __DEV__ is not defined"

I tested this library on different versions. It works fine on 12.0.3 and throw an error on 12.0.4:


```
con.render
E:/_ReactProjects/src/createIconSet.tsx:147
144 | }
145 |
146 | render() {
> 147 | if (__DEV__ && this.props.name && !(this.props.name in glyphMap)) {
| ^ 148 | console.warn(
149 | `"${this.props.name}" is not a valid icon name for family "${fontName}"`
150 | );
```

I am using ejected expo and got this error on web compiling via stock "node scripts/start.js"