Prise en compte des top level domains vides dans CountryDetail

src/components/CountryDetail.jsx

@@ -69,7 +69,7 @@ const CountryDetail = (props) => {
 			<div>
 				<h2>Country detail</h2>
 				<p>Name: {country.data.name.common}</p>
-				<p>Top level domain: {country.data.tld[0]}</p>
+				<p>Top level domain: {country.data.tld && country.data.tld[0]}</p>
 				<p>Capital city: {country.data.capital[0]}</p>
 				<p>Population: {country.data.population}</p>
 				<p>Area: {country.data.area} km²</p>