Improve currencies pages navigation

app/Template/currency/create.php

@@ -0,0 +1,11 @@
+<div class="page-header">
+    <h2><?= t('Add or change currency rate') ?></h2>
+</div>
+<form method="post" action="<?= $this->url->href('CurrencyController', 'save') ?>" autocomplete="off">
+    <?= $this->form->csrf() ?>
+    <?= $this->form->label(t('Currency'), 'currency') ?>
+    <?= $this->form->select('currency', $currencies, $values, $errors) ?>
+    <?= $this->form->label(t('Rate'), 'rate') ?>
+    <?= $this->form->text('rate', $values, $errors, array('autofocus'), 'form-numeric') ?>
+    <?= $this->modal->submitButtons() ?>
+</form>