fix(app-with-router): set .goto-active as global css class when using css-module

closes aurelia/aurelia#828

Author: 3cp

app-with-router/src/my-app.css__if_css

@@ -13,6 +13,13 @@ a:hover {
   background-color: darkgray;
 }
 
+// @if css-module
+/* When using css-module, set .goto-active
+as a global class name */
+:global(.goto-active) {
+// @endif
+// @if !css-module
 .goto-active {
+// @endif
   background-color: lightgray;
 }

app-with-router/src/my-app.less__if_less

@@ -13,6 +13,13 @@ a {
   }
 }
 
+// @if css-module
+/* When using css-module, set .goto-active
+as a global class name */
+:global(.goto-active) {
+// @endif
+// @if !css-module
 .goto-active {
+// @endif
   background-color: lightgray;
 }

app-with-router/src/my-app.scss__if_sass

@@ -13,6 +13,13 @@ a {
   }
 }
 
+// @if css-module
+/* When using css-module, set .goto-active
+as a global class name */
+:global(.goto-active) {
+// @endif
+// @if !css-module
 .goto-active {
+// @endif
   background-color: lightgray;
 }