fix: minor bugs

classes/local/form/elements/hidden_element.php

@@ -54,7 +54,7 @@ public function __construct(string $name, string $value) {
      */
     public function render_to(render_context $context): void {
         $context->add_element('hidden', $this->name, $this->value);
-        $context->set_type($this->name, PARAM_TEXT);
+        $context->set_type($this->name, PARAM_RAW);
 
         $this->render_conditions($context, $this->name);
     }

classes/local/form/elements/text_input_element.php

@@ -83,7 +83,7 @@ public function render_to(render_context $context): void {
             $context->contextualize($this->label),
             $attributes
         );
-        $context->set_type($this->name, PARAM_TEXT);
+        $context->set_type($this->name, PARAM_RAW);
 
         if ($this->default) {
             $context->set_default($this->name, $context->contextualize($this->default));

edit_questionpy_form.php

@@ -479,7 +479,7 @@ private function validate_options_form(array $data, ?stored_file $package, array
             foreach ($errorswithnoelement as $element => $error) {
                 $listitems[] = get_string('options_form_validation_error_element', 'qtype_questionpy', [
                     'name' => $element,
-                    'error' => $error,
+                    'error' => s($error),
                 ]);
             }
             $list = html_writer::alist($listitems);