feat(storage): finish initial basic implementation

- support both s3 & file storage backends
- support imgproxy to scale images
- manually tested with MinIO & local storage
- fixed service discovery issue in APIGatey reconciler not detecting
  service changes
- refactored defaults and env variable code to make it manageable again
- add repo link to docs

mkdocs.yml

@@ -1,5 +1,13 @@
 site_name: Supabase Operator
+site_author: Peter Kurfer
 site_url: https://docs.supabase-operator.icb4dc0.de/
+site_description: |
+  Documentation for the Supabase Operator, a Kubernetes operator for managing Supabase instances.
+repo_name: prskr/supabase-operator
+repo_url: https://code.icb4dc0.de/prskr/supabase-operator
+
+dev_addr: "127.0.0.1:8001"
+
 theme:
   name: material
   custom_dir: docs/overrides