🔧(backend) setup Docs app dockers to work with Find

Add nginx with 'nginx' alias to the 'lasuite-net' network (keycloak calls)
Add celery-dev to the 'lasuite-net' network (Find API calls in jobs)
Set app-dev alias as 'impress' in the 'lasuite-net' network
Add indexer configuration in common settings

Signed-off-by: Fabre Florian <ffabre@hybird.org>

compose.yml

@@ -73,8 +73,10 @@ services:
     ports:
       - "8071:8000"
     networks:
-      - default
-      - lasuite-net
+      default: {}
+      lasuite-net:
+        aliases:
+          - impress
     volumes:
       - ./src/backend:/app
       - ./data/static:/data/static
@@ -95,6 +97,9 @@ services:
     command: ["celery", "-A", "impress.celery_app", "worker", "-l", "DEBUG"]
     environment:
       - DJANGO_CONFIGURATION=Development
+    networks:
+      - default
+      - lasuite-net
     env_file:
       - env.d/development/common
       - env.d/development/common.local
@@ -110,6 +115,11 @@ services:
     image: nginx:1.25
     ports:
       - "8083:8083"
+    networks:
+      default: {}
+      lasuite-net:
+        aliases:
+          - nginx
     volumes:
       - ./docker/files/etc/nginx/conf.d:/etc/nginx/conf.d:ro
     depends_on: