revert c4206b7d341c9f28285efa0582ab0271ddfeaa49

revert Static CMS v4 (#246)

- Static CMS v4
- switch from jsdelivr to unpkg due to performance issues
- custom themes
- preset view_group

Reviewed-on: #246

static/admin/config/collections/blog.js

@@ -24,16 +24,12 @@ const BlogCollection = {
     field: "type",
     value: "post",
   },
-  view_groups: {
-    default: "draft",
-    groups: [
-      {
-        name: "draft",
-        label: "Entwurf",
-        field: "draft",
-      },
-    ],
-  },
+  view_groups: [
+    {
+      label: "Entwurf",
+      field: "draft",
+    },
+  ],
   sortable_fields: {
     fields: ["date", "title"],
     default: {