Immich: increase disk resource; add logic for determining upload location change

- Increasing disk resources to 20GB
- Adding 'IMMICH_MEDIA_LOCATION' env var to .env - edit this to change
Immich upload location
- Read IMMICH_MEDIA_LOCATION from env during update for dynamic symlinks

install/immich-install.sh

@@ -385,6 +385,8 @@ DB_VECTOR_EXTENSION=vectorchord
 REDIS_HOSTNAME=127.0.0.1
 IMMICH_MACHINE_LEARNING_URL=http://127.0.0.1:3003
 MACHINE_LEARNING_CACHE_FOLDER=${INSTALL_DIR}/cache
+
+IMMICH_MEDIA_LOCATION=${UPLOAD_DIR}
 EOF
 cat <<EOF >"${ML_DIR}"/ml_start.sh
 #!/usr/bin/env bash