Artifact upload : on discard action interupt the ongoing upload

Signed-off-by: Asharani <asharani.murugesh@in.bosch.com>

hawkbit-ui/src/main/resources/VAADIN/themes/hawkbit/customstyles/others.scss

@@ -10,7 +10,7 @@
 @mixin others {
 
   //Style to display the pending action count
-  .unread {
+  .unread, .error-count {
     @include valo-badge-style;
     position: absolute;
     pointer-events: none;
@@ -21,6 +21,15 @@
     border-radius: $v-border-radius;
     color: $widget-bg;
   }
+  
+   .error-count {
+    top: round($v-unit-size / -5);
+    right: round($v-unit-size / 1.9);
+  }
+
+	.error-count-color{
+	    @include valo-gradient($color: $red-color);
+  }
 
   //Deployment view - Style of count message
   .v-caption-count-msg-box {