Apply fix width on logo image for mobile

Signed-off-by: Eric Poirier <eric.poirier@eclipse-foundation.org>
diff --git a/classes/themes/quicksilver.class.php b/classes/themes/quicksilver.class.php
index 955289d..494b865 100644
--- a/classes/themes/quicksilver.class.php
+++ b/classes/themes/quicksilver.class.php
@@ -38,6 +38,7 @@
     $this->setAlternateLayout();
     $this->removeAttributes('img_logo_default', 'img-responsive', 'class');
     $this->setAttributes('img_logo_default', '140', 'width');
+    $this->setAttributes('img_logo_mobile', '140', 'width');
 
     // Featured footer
     $this->setAttributes('featured-footer', 'featured-footer featured-footer-newsletter background-secondary');