revert 65260f63c67562ea2821c31d37a0ac3caa755fd8

revert Static CMS v4 (#250)

Schließt #247

Reviewed-on: #250

static/admin/config/schulchronik.js

@@ -7,7 +7,6 @@ import {
   StatsCollection,
   SuperhaufenCollection,
 } from "./collections/index.js";
-import { GCGThemeDark, GCGThemeLight } from "./themes.js";
 
 const config = {
   backend: {
@@ -39,13 +38,6 @@ const config = {
     clean_accents: true,
     sanitize_replacement: "-",
   },
-  theme: {
-    include_built_in_themes: false,
-    themes: [
-      GCGThemeDark,
-      GCGThemeLight
-    ]    
-  },
   collections: [
     ChronikjahreCollection,
     SuperhaufenCollection,