(feat): added captcha for invalid login

Views/template/loginError.phtml

@@ -0,0 +1,18 @@
+<span class="ms-5 me-5 row alert alert-danger" role="alert"><?= $view->loginError ?></span>
+<div class="row captcha-container">
+    <!-- CAPTCHA Display -->
+    <div class="form-floating mb-3 col">
+        <input type="text" class="form-control" id="captchaCode" value="<?php
+        // Generate a simple 5-character CAPTCHA
+        $captcha = substr(str_shuffle("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"), 0, 5);
+        echo $captcha;
+        ?>" readonly>
+        <label for="captchaCode">CAPTCHA Code</label>
+    </div>
+
+    <!-- CAPTCHA Input -->
+    <div class="form-floating mb-3 col">
+        <input type="text" class="form-control" id="captchaInput" name="captchaInput" placeholder="Enter CAPTCHA" required>
+        <label for="captchaInput">Enter CAPTCHA</label>
+    </div>
+</div>