fix: build main css

Author: pgbross

packages/mcwv-toolbar/entry.js

@@ -1,7 +1,7 @@
 import { BasePlugin } from '@mcwv/base';
 import mdcFixedAdjust from './mdc-fixed-adjust.js';
 import mdcTopAppBarAction from './mdc-top-app-bar-action.js';
-import mdcTopAppBar from './mdc-top-app-bar.vue';
+import mdcTopAppBar from './mdc-top-app-bar.js';
 
 export { mdcTopAppBar, mdcTopAppBarAction, mdcFixedAdjust };