Generating thumbnails. Added site overview page.

assets/js/sites/sites.js

@@ -0,0 +1,13 @@
+import state from './state';
+import mutations from './mutations';
+import actions from './actions';
+
+function initSitesStore(store, router) {
+    return {
+        state,
+        mutations,
+        actions: actions(store, router),
+    };
+}
+
+export default initSitesStore;