renamed hostname to env

docker-compose.yaml

@@ -5,7 +5,7 @@ services:
     command: ["start"]
     env_file:
       - ./.keycloak-env
-      - ./.hostname
+      - ./.env
     environment:
       KC_DB: postgres
       KC_DB_SCHEMA: public
@@ -92,7 +92,7 @@ services:
     container_name: swa-backend
     env_file:
       - ./.backend-env
-      - ./.hostname
+      - ./.env
     expose:
       - 8080
     networks: