Various code cleanup.

app/Support/Twig/AmountFormat.php

@@ -132,6 +132,7 @@ class AmountFormat extends Twig_Extension
     {
         return new Twig_SimpleFunction(
             'formatAmountBySymbol',
+            /** @noinspection MoreThanThreeArgumentsInspection */
             function (string $amount, string $symbol, int $decimalPlaces = null, bool $coloured = null): string {
                 $decimalPlaces            = $decimalPlaces ?? 2;
                 $coloured                 = $coloured ?? true;

app/Support/Twig/Extension/TransactionJournal.php

@@ -136,7 +136,7 @@ class TransactionJournal extends Twig_Extension
     /**
      * @param JournalModel $journal
      *
-     * @return string
+     * @return array
      */
     private function getTotalAmount(JournalModel $journal): array
     {

app/Support/Twig/General.php

@@ -103,9 +103,7 @@ class General extends Twig_Extension
         return new Twig_SimpleFunction(
             'activeRoutePartialWhat',
             function ($context): string {
-                $args       = \func_get_args();
-                $route      = $args[1]; // name of the route.
-                $what       = $args[2]; // name of the route.
+                [, $route, $what] = \func_get_args();
                 $activeWhat = $context['what'] ?? false;
 
                 if ($what === $activeWhat && !(false === stripos(Route::getCurrentRoute()->getName(), $route))) {