I added DEFAULT_LOCALE to docker composer, but when container is running, it doesn't work, I just want to set the default lang to Chinese

[liiijz]

Describe the Bug

my docker composer goes here

services:
  umami:
    image: ghcr.io/umami-software/umami:postgresql-latest
    ports:
      - "3000:3000"
    environment:
      DATABASE_URL: postgresql://umami:umami@db:5432/umami
      DATABASE_TYPE: postgresql
      APP_SECRET: XXX
      TRACKER_SCRIPT_NAME: umami.js
      DEFAULT_LOCALE: zh-CN
    depends_on:
      db:
        condition: service_healthy
    restart: always
    healthcheck:
      test: ["CMD-SHELL", "curl http://localhost:3000/api/heartbeat"]
      interval: 5s
      timeout: 5s
      retries: 5
  db:
    image: postgres:15-alpine
    environment:
      POSTGRES_DB: umami
      POSTGRES_USER: umami
      POSTGRES_PASSWORD: umami
    volumes:
      - umami-db-data:/var/lib/postgresql/data
    restart: always
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
      interval: 5s
      timeout: 5s
      retries: 5
volumes:
  umami-db-data:

Database

PostgreSQL

Relevant log output

No response

Which Umami version are you using? (if relevant)

No response

Which browser are you using? (if relevant)

No response

How are you deploying your application? (if relevant)

No response