feat: change default media location to /data (#20367)

* feat!: change default media location to /data

* feat: dynamically detect media location

docker/docker-compose.dev.yml

@@ -36,7 +36,6 @@ services:
     env_file:
       - .env
     environment:
-      IMMICH_MEDIA_LOCATION: /data
       IMMICH_REPOSITORY: immich-app/immich
       IMMICH_REPOSITORY_URL: https://github.com/immich-app/immich
       IMMICH_SOURCE_REF: local

docker/docker-compose.prod.yml

@@ -19,8 +19,6 @@ services:
     build:
       context: ../
       dockerfile: server/Dockerfile
-    environment:
-      - IMMICH_MEDIA_LOCATION=/data
     volumes:
       - ${UPLOAD_LOCATION}/photos:/data
       - /etc/localtime:/etc/localtime:ro

docker/docker-compose.yml

@@ -18,7 +18,7 @@ services:
     #   service: cpu # set to one of [nvenc, quicksync, rkmpp, vaapi, vaapi-wsl] for accelerated transcoding
     volumes:
       # Do not edit the next line. If you want to change the media storage location on your system, edit the value of UPLOAD_LOCATION in the .env file
-      - ${UPLOAD_LOCATION}:/usr/src/app/upload
+      - ${UPLOAD_LOCATION}:/data
       - /etc/localtime:/etc/localtime:ro
     env_file:
       - .env