Fix incorrect style on button

tpl/bootstrap.php

@@ -494,11 +494,11 @@ endif;
 <?php
 if ($isPage):
 ?>
-						<button id="newbutton" type="button" class="reloadlink hidden btn btn-<?php echo $isDark ? 'warning' : 'default'; ?> navbar-btn">
+						<button id="newbutton" type="button" class="reloadlink hidden btn btn-<?php echo $isDark ? 'warning' : 'default'; ?>">
 							<span class="glyphicon glyphicon-file" aria-hidden="true"></span> <?php echo I18n::_('New'), PHP_EOL;
 else:
 ?>
-						<button id="sendbutton" type="button" class="hidden btn btn-<?php echo $isDark ? 'warning' : 'primary'; ?> navbar-btn">
+						<button id="sendbutton" type="button" class="hidden btn btn-<?php echo $isDark ? 'warning' : 'primary'; ?>">
 							<span class="glyphicon glyphicon-upload" aria-hidden="true"></span> <?php echo I18n::_('Send'), PHP_EOL;
 endif;
 ?>