Fix dimmer from blurring on webkit

src/definitions/modules/dimmer.less

@@ -142,8 +142,8 @@ body.ui.dimmed.dimmable > :not(.dimmer){
 /*--------------
      Simple
 ---------------*/
-/* Displays without javascript */
 
+/* Displays without javascript */
 .ui.simple.dimmer {
   display: block;
   overflow: hidden;

src/themes/packages/default/modules/dimmer.variables

@@ -20,7 +20,8 @@
 @textColor: @white;
 @overflow: hidden;
 
-@elementFilter: ~"blur(15px) grayscale(0.7)";
+// @elementFilter: ~"blur(15px) grayscale(0.7)";
+@elementFilter: '';
 
 /* Hidden (Default) */
 @hiddenOpacity: 0;