style updates

Modules/Countries/Support/Iso3166.php

@@ -69,7 +69,7 @@ final class Iso3166
         $country = self::normaliseAlpha2($countryAlpha2);
         $code = strtoupper(trim($subdivisionCode));
 
-        if (str_starts_with($code, $country.'-')) {
+        if (str_starts_with($code, $country . '-')) {
             return $code;
         }
 
@@ -77,7 +77,7 @@ final class Iso3166
             throw new InvalidArgumentException('ISO 3166-2 subdivision codes must contain 1 to 6 letters or numbers after the country prefix.');
         }
 
-        return $country.'-'.$code;
+        return $country . '-' . $code;
     }
 
     public static function flagEmoji(string $alpha2): string
@@ -85,6 +85,6 @@ final class Iso3166
         $alpha2 = self::normaliseAlpha2($alpha2);
         $base = 127397;
 
-        return mb_chr($base + ord($alpha2[0]), 'UTF-8').mb_chr($base + ord($alpha2[1]), 'UTF-8');
+        return mb_chr($base + ord($alpha2[0]), 'UTF-8') . mb_chr($base + ord($alpha2[1]), 'UTF-8');
     }
 }