Race/Regatta list filter - Added icons for filter

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/home/client/place/event/partials/listNavigation/RegattaNavigation.gss

@@ -49,7 +49,7 @@
   font-size: 0.866666666666667rem;
   text-align: right;
   margin-top: 0;
-  background: transparent url("../images/home/arrow-down-filled-black.png") no-repeat;
+  background: transparent url("images/home/arrow-down-filled-black.png") no-repeat;
   background-position: 96%;
   background-size: 0.923076923076923em 0.538461538461538em;
   border: 1px solid transparent;
@@ -65,7 +65,7 @@
   background-color: #f2f2f2;
 }
 .regattanavigation_filter.jsdropdownactive {
-  background-image: url("../images/home/arrow-down-filled-yellow.png");
+  background-image: url("images/home/arrow-down-filled-yellow.png");
 }
 .regattanavigation_filter.jsdropdownactive .regattanavigation_filter_dropdown {
   display: block;
@@ -95,7 +95,7 @@
   padding: 0 2.307692307692307em 0 0.769230769230769em;
 }
 .regattanavigation_filter_dropdown_linkactive {
-  background: url("../images/home/dropdown__check@2x.png") no-repeat;
+  background: url("images/home/dropdown__check@2x.png") no-repeat;
   background-position: 95%;
   background-size: 1.2em 0.933333333333333em;
 }