text: Title: 🧑‍💻Add conf ngnix for upload in dev mode
  Body: ## Feature Request
  
  Add conf ngnix for upload with local dev mode working with docker-compose.
  
  We have 2 ways to develop in local mode, with `Tilt` (k8s stack) and with `docker-compose` (docker-compose stack), the upload image process works with Tilt but not with the docker-compose stack.
  
  ## Code
  
  On Tilt dev:
  https://github.com/numerique-gouv/impress/blob/67a20f249e33ffbea326f2be825e085847c34331/src/helm/env.d/dev/values.impress.yaml.gotmpl#L107-L119
  
  Adapt this file to use the same conf:
  https://github.com/numerique-gouv/impress/blob/main/docker/files/etc/nginx/conf.d/default.conf
  
  
  ----
  
  See: #118 
  
  