Add a FileTree component and convert every directory tree to it

content/en/3.serveex/3.security/3.pocket-id.md

@@ -14,15 +14,18 @@ This makes it a good fit if you just need a simple, fast SSO backend, for exampl
 - [Pocket ID on GitHub](https://github.com/pocket-id/pocket-id)
 
 ## Installation
-Folder structure:
-```text [Directory tree]
-root
-└── docker
-    └── pocket-id
-        ├── compose.yaml
-        ├── .env
-        └── data
-```
+
+::file-tree
+---
+tree:
+  /:
+    - docker:
+      - pocket-id:
+        - compose.yaml
+        - .env
+        - data/
+---
+::
 
 ::steps{level="3"}
 ### Create the data folder