Fix 1300px bad behavior

Signed-off-by: Bruno Lesieur <bruno.lesieur@gmail.com>

Author: MachinisteWeb

themes/vue/source/css/page.styl

@@ -179,7 +179,7 @@
   #header
     background-color: rgba(255,255,255,.4)
 
-@media screen and (max-width: 1300px)
+@media screen and (max-width: 1340px)
   .content.with-sidebar
     margin-left: 290px
   #ad