refactor of menus

begin work on settings

src/lib/menu.js

@@ -0,0 +1,12 @@
+const focusActiveApp = (menu) => {
+  window.setTimeout(() => {
+    const a = menu.querySelector('.side-menu-app.active a')
+      || menu.querySelector('.side-menu-app a')
+
+    if (a) {
+      a.focus()
+    }
+  }, 500)
+}
+
+export { focusActiveApp }