Add button group

app.js

@@ -1,9 +1,10 @@
-import { Layout } from "./components/layout.js"
-import { Page } from "./components/page.js"
-import { Header } from "./components/header.js"
-import { NavMenu } from "./components/nav-menu.js"
-import { PageMenu } from "./components/page-menu.js"
-import { Dialog } from "./components/dialog.js"
+import { Layout } from "/components/layout.js"
+import { Page } from "/components/page.js"
+import { Header } from "/components/header.js"
+import { NavMenu } from "/components/nav-menu.js"
+import { PageMenu } from "/components/page-menu.js"
+import { Dialog } from "/components/dialog.js"
+import { ButtonGroup } from "/forms/button-group.js"
 
 customElements.define('m-layout', Layout)
 customElements.define('m-page', Page)
@@ -11,6 +12,9 @@ customElements.define('m-header', Header)
 customElements.define('m-nav-menu', NavMenu)
 customElements.define('m-page-menu', PageMenu)
 customElements.define('m-dialog', Dialog)
+customElements.define(
+  'm-forms-button-group', ButtonGroup
+)
 
 class Setup {
   async run() {

sw.js

@@ -10,7 +10,8 @@ async function initCache() {
     '/components/nav-menu.js',
     '/components/page-menu.js',
     '/components/dialog.js',
-  ]) //7
+    '/forms/button-group.js,
+  ])
 }
 
 self.addEventListener("install", event => {