Make StatusWidget tools extensible (#3189)

js/src/admin/components/StatusWidget.js

@@ -26,7 +26,7 @@ export default class StatusWidget extends DashboardWidget {
         buttonClassName="Button"
         menuClassName="Dropdown-menu--right"
       >
-        <Button onclick={this.handleClearCache.bind(this)}>{app.translator.trans('core.admin.dashboard.clear_cache_button')}</Button>
+        {this.toolsItems().toArray()}
       </Dropdown>
     );
 
@@ -37,6 +37,17 @@ export default class StatusWidget extends DashboardWidget {
     return items;
   }
 
+  toolsItems() {
+    const items = new ItemList();
+
+    items.add(
+      'clearCache',
+      <Button onclick={this.handleClearCache.bind(this)}>{app.translator.trans('core.admin.dashboard.clear_cache_button')}</Button>
+    );
+
+    return items;
+  }
+
   handleClearCache(e) {
     app.modal.show(LoadingModal);