feat: allow usage of local folder for file storage

compose.yml

@@ -16,15 +16,18 @@ services:
       - gorb-backend:/gorb
     environment:
       #- RUST_LOG=debug
+      # This should be changed to the public URL of the server!
+      - URL=http://localhost:8080
       - DATABASE_USERNAME=gorb
       - DATABASE_PASSWORD=gorb
       - DATABASE=gorb
       - DATABASE_HOST=database
       - DATABASE_PORT=5432
-      - BUNNY_API_KEY=your_storage_zone_password_here
-      - BUNNY_ENDPOINT=Frankfurt
-      - BUNNY_ZONE=gorb
-      - BUNNY_CDN_URL=https://cdn.gorb.app
+      # These can be set to use a CDN, if they are not set then files will be stored locally
+      #- BUNNY_API_KEY=your_storage_zone_password_here
+      #- BUNNY_ENDPOINT=Frankfurt
+      #- BUNNY_ZONE=gorb
+      #- BUNNY_CDN_URL=https://cdn.gorb.app
   database:
     image: postgres:16
     restart: always