web: cleanup entrypoints

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

web/src/interfaces/AdminInterface.ts

@@ -1,3 +1,9 @@
+import "construct-style-sheets-polyfill";
+
+// Elements that are used by SiteShell pages
+// And can't dynamically be imported
+import "../elements/CodeMirror";
+import "../elements/messages/MessageContainer";
 import { customElement } from "lit-element";
 import { me } from "../api/Users";
 import { SidebarItem } from "../elements/sidebar/Sidebar";