apex: fixed reference to icon to use public resource

Author: JanssenBrm

themes/apex/src/theme/components/_header.scss

@@ -184,7 +184,7 @@
       top: 50%;
       right: 0;
       transform: translateY(-50%);
-      background-image: url('@/theme/assets/img/icons/icon-caret-down-blue.svg');
+      background-image: url('@/../public/assets/img/icons/icon-caret-down-blue.svg');
       background-repeat: no-repeat;
       background-position: center center;
       background-size: contain;
@@ -216,5 +216,5 @@
   width: 14px;
   height: 10px;
   background-repeat: no-repeat;
-  background-image: url('@/theme/assets/img/icons/arrow_right_alt.svg');
+  background-image: url('@/../public/assets/img/icons/arrow_right_alt.svg');
 }