Update copyright statements

app/Support/Http/Api/ConvertsExchangeRates.php

@@ -1,5 +1,5 @@
 <?php
-declare(strict_types=1);
+
 /*
  * ConvertsExchangeRates.php
  * Copyright (c) 2022 james@firefly-iii.org
@@ -20,6 +20,8 @@ declare(strict_types=1);
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+declare(strict_types=1);
+
 namespace FireflyIII\Support\Http\Api;
 
 use Carbon\Carbon;