Fixed issue #19136: Undefined variable in admin global settings gener…

…al subview (#3499)

Co-authored-by: Matthew Favetti <mpfavetti@ucdavis.edu>

application/views/admin/globalsettings/_general.php

@@ -42,7 +42,7 @@
             <div class="col-12">
                 <select class="form-select" name="defaulttheme" id="defaulttheme">
                     <?php foreach ($templatenames as $templatename) : ?>
-                        <option value='<?php echo CHtml::encode($themeName); ?>' <?php echo ($thisdefaulttheme == $templatename) ? "selected='selected'" : "" ?> >
+                        <option value='<?php echo CHtml::encode($templatename); ?>' <?php echo ($thisdefaulttheme == $templatename) ? "selected='selected'" : "" ?> >
                             <?php echo CHtml::encode($templatename); ?>
                         </option>
                     <?php endforeach; ?>