Fix the recent/favorite/shared filename problem

Signed-off-by: Greta Doci <gretadoci@gmail.com>

apps/files/css/mobile.scss

@@ -2,7 +2,7 @@
    $breakpoint-mobile +1 = size where app-navigation is hidden +1
    688 = table min-width */
 $min-table-width: 688px;
-@media only screen and (max-width: $min-table-width + $navigation-width) and (min-width: $breakpoint-mobile + 1), only screen and (max-width: $min-table-width) {
+@media only screen and (max-width: $min-table-width + $navigation-width) and (min-width: $breakpoint-mobile -1), only screen and (max-width: $min-table-width) {
 
 .app-files #app-content.dir-drop{
 	background-color: rgba(255, 255, 255, 1)!important;