fix modern logo size

ot_templating/Resources/Private/Partials/Modern/Menu.html

@@ -25,7 +25,7 @@
                                     <f:then>
                                         <a href="{ot:rootPage.getUri()}" title="{settings.structureName}">
                                             <img id="logo_img"
-                                                 src="{ot:image.getSrcById(fileId: settings.structureLogoId, size: 'sm')}"
+                                                 src="{ot:image.getSrcById(fileId: settings.structureLogoId, size: 'md')}"
                                                  alt="{settings.structureName}"/>
                                         </a>
                                     </f:then>