Update page-user-notifications.pug

src/views/user/page-user-notifications.pug

 solid-notifications-template(data-rdf-type='foaf:user')
   template
     .solid-notification__avatar
-      img(src="${await author['account.foaf:depiction']} || /../../images/alien.svg" style=`max-height:${clientLogoHeight || '18px'}`)
+      img(src="${await author['account.foaf:depiction'] || '/images/alien.svg'}" style=`max-height:${clientLogoHeight || '18px'}`)
     .solid-notification__content
       .solid-notification__title ${await author.name} 
         span.solid-notification__title__side en privé