Match set frontend to exam view

components/com_testquestions/tmpl/set/default.php

@@ -3,6 +3,18 @@
 defined('_JEXEC') or die;
 ?>
 <div class="com-testquestions egzamin">
+    <form action="<?php echo htmlspecialchars($_SERVER['REQUEST_URI'], ENT_QUOTES, 'UTF-8'); ?>" method="get" class="mb-4">
+        <label for="test-set" class="form-label"><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_SELECT_SET'); ?></label>
+        <div class="input-group">
+            <select id="test-set" name="set_id" class="form-select egzamin" required>
+                <option value=""><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_SELECT_SET'); ?></option>
+                <?php foreach ($this->sets as $set) : ?>
+                    <option value="<?php echo (int) $set->id; ?>" <?php echo $this->set && (int) $this->set->id === (int) $set->id ? 'selected' : ''; ?>><?php echo htmlspecialchars(($set->subject_title ? $set->subject_title . ' — ' : '') . $set->title, ENT_QUOTES, 'UTF-8'); ?></option>
+                <?php endforeach; ?>
+            </select>
+            <input type="submit" class="egzamin" value="<?php echo htmlspecialchars(\Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_SHOW_SET'), ENT_QUOTES, 'UTF-8'); ?>">
+        </div>
+    </form>
     <?php if (!$this->set) : ?>
         <div class="alert alert-info"><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_SET_NOT_FOUND'); ?></div>
     <?php else : ?>