Revert "website: latest migration to new structure" (#11634)

Revert "website: latest migration to new structure (#11522)"

This reverts commit 9a89a5f94b.

website/docs/flow/examples/snippets.md

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+---
+title: Example policy snippets for flows
+---
+
+### Redirect current flow to another URL <span class="badge badge--version">authentik 2022.7+</span>
+
+```python
+plan = request.context.get("flow_plan")
+if not plan:
+    return False
+plan.redirect("https://foo.bar")
+return False
+```
+
+This policy should be bound to the stage after your redirect should happen. For example, if you have an identification and a password stage, and you want to redirect after identification, bind the policy to the password stage. Make sure the stage binding's option _Evaluate when stage is run_ is enabled.
+
+### Deny flow when user is authenticated
+
+```python
+return not request.user.is_authenticated
+```
+
+When used with authentik 2022.7 or later, set the flow _Denied action_ to _CONTINUE_. This will redirect already authenticated users to the default interface if they try to use the respective flow.