Flarum\Admin\AdminServiceProvider::flushWebAppAssetsWhenExtensionsChanged PHP Method

    protected function flushWebAppAssetsWhenExtensionsChanged()
    {
        $events = $this->app->make('events');
        $events->listen(ExtensionWasEnabled::class, [$this, 'flushWebAppAssets']);
        $events->listen(ExtensionWasDisabled::class, [$this, 'flushWebAppAssets']);
    }