enhance(geoblock): Warning for legacy method

fix: #49
This PR adds a warning to the top of the Native GeoBlock article to a new dedicated community guide how to remove the legacy method of geoblocking

self-host/community-guides/remove-geoblock-plugin.mdx

@@ -0,0 +1,62 @@
+---
+title: "Remove GeoBlock Plugin"
+---
+
+<Note>
+This is a community guide and is not officially supported. If you have any issues, please reach out to the community on [Discord](https://pangolin.net/discord) or [Github discussions](https://github.com/orgs/fosrl/discussions).
+</Note>
+
+Pangolin now supports native geoblocking. If you previously installed the Traefik GeoBlock plugin, remove it before enabling native geoblocking to avoid duplicate blocking or startup errors.
+
+## Remove the GeoBlock plugin
+
+<Steps>
+<Step title="Remove GeoBlock middleware references">
+  Remove any references to `geoblock@file` from your Traefik entry points, routers, or labels.
+
+  Example removal in `/config/traefik/traefik_config.yml`:
+
+  ```yaml
+  entryPoints:
+    websecure:
+      http:
+        middlewares:
+          # Remove this line
+          - geoblock@file
+  ```
+</Step>
+<Step title="Remove the plugin definition from Traefik static config">
+  Delete the GeoBlock plugin block from `/config/traefik/traefik_config.yml`:
+
+  ```yaml
+  experimental:
+    plugins:
+      geoblock:
+        moduleName: github.com/PascalMinder/geoblock
+        version: v0.3.2
+  ```
+</Step>
+<Step title="Remove the middleware configuration from dynamic config">
+  Delete the GeoBlock middleware section from `/config/traefik/dynamic_config.yml`:
+
+  ```yaml
+  http:
+    middlewares:
+      geoblock:
+        plugin:
+          geoblock:
+            ...
+  ```
+</Step>
+<Step title="Restart Traefik">
+  Restart Traefik to apply the changes:
+
+  ```bash
+  docker restart traefik
+  ```
+</Step>
+</Steps>
+
+## Next steps
+
+Follow [Enable Geo-blocking](/self-host/advanced/enable-geoblocking) to configure native geoblocking in Pangolin.