Add main UI js file

karaokatalog/ui/static/karaokatalog.js

@@ -0,0 +1,15 @@
+import "./lib/mithril.min.js"
+
+import All from "./components/pages/All.js"
+import Favorites from "./components/pages/Favorites.js"
+
+/*
+ * We leave the default routing strategy (https://mithril.js.org/route.html#routing-strategies), i.e.,
+ * with a #! prefix, and do not change m.route.prefix.
+ *
+ * This is to make it easier to deploy this app on servers without changing the configuration.
+ */
+m.route(document.body, "/all", {
+    "/all": All,
+    "/favorites": Favorites,
+})