fix/BAM-129-Enabling-decimals-on-web-form (#18)

* BAM-129 Enabling decimals on web form
- allow user to type 2 decimal place in amount input field

* Add step in terminal payment

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Co-authored-by: Ioannis Petridis <[email protected]>

samples/php8/ecom-server/public/terminal_payment_form.php

@@ -74,7 +74,7 @@ function generateRandomOrderId($length = 8)
 <h2>Terminal ID: <?php echo $terminalId; ?></h2>
 <form action="terminal_submit_payment.php" method="POST">
     <label for="amount">Amount:</label>
-    <input type="number" id="amount" name="amount" value="<?php echo $randomAmount; ?>" required>
+    <input type="number" id="amount" name="amount" value="<?php echo $randomAmount; ?>" step="0.01" required>
 
     <label for="currency">Currency:</label>
     <input type="text" id="currency" name="currency" value="<?php echo $config['currency']; ?>" class="readonly"