experiment: prepare LitElement based menu-bar for publishing (#8050)

Author: web-padawan

packages/menu-bar/package.json

@@ -24,8 +24,6 @@
     "theme",
     "vaadin-*.d.ts",
     "vaadin-*.js",
-    "!vaadin-lit-*.d.ts",
-    "!vaadin-lit-*.js",
     "web-types.json",
     "web-types.lit.json"
   ],

packages/menu-bar/src/vaadin-lit-menu-bar.js

@@ -18,7 +18,7 @@ import { MenuBarMixin } from './vaadin-menu-bar-mixin.js';
  *
  * ## Disclaimer
  *
- * This component is an experiment not intended for publishing to npm.
+ * This component is an experiment and not yet a part of Vaadin platform.
  * There is no ETA regarding specific Vaadin version where it'll land.
  * Feel free to try this code in your apps as per Apache 2.0 license.
  */

packages/menu-bar/vaadin-lit-menu-bar.d.ts

@@ -0,0 +1 @@
+export * from './src/vaadin-menu-bar.js';

packages/menu-bar/vaadin-lit-menu-bar.js

@@ -0,0 +1,2 @@
+import './theme/lumo/vaadin-lit-menu-bar.js';
+export * from './src/vaadin-lit-menu-bar.js';