Fix collections and native app issue (#4685)

Collections were not visible in the organization view.
This was because the `flexibleCollections` was set to `true`

Found an issue with loading some old created Secure Notes which had `{}` or `{"type":null}` as there `data` value.
This isn't allowed. When detected, replace it with `{"type":0}`

Fixes #4682
Fixes #4590

src/db/models/organization.rs

@@ -406,7 +406,7 @@ impl UserOrganization {
             "accessSecretsManager": false,
             "limitCollectionCreationDeletion": true,
             "allowAdminAccessToAllCollectionItems": true,
-            "flexibleCollections": true,
+            "flexibleCollections": false,
 
             "permissions": permissions,