Function isValidEmail

isValidEmail(email: string): boolean
Checks if a string is a valid email address.
Parameters
- email: string
  The email address to validate
Returns boolean
True if it's a valid email, false otherwise
Example
```
import { isValidEmail } from '@consumidor-positivo/ts-utils';

if (isValidEmail('user@example.com')) {
  console.log('Valid email!');
}
```