Configuration fixes for mobymask-v2 stack for multiple deployments (#318)

* Fix contract deployment script in fixturenet-optimism stack

* Configure relay node's announce domain from env

* Configure relay peers list for the relay node from env

* Create and use peer ids from a mounted volume

* Fix command to create watcher config

* Fix mobymask-app deployment script

Former-commit-id: 882f0b16aa

app/data/compose/docker-compose-peer-test-app.yml

@@ -14,6 +14,7 @@ services:
     volumes:
       - ../config/watcher-mobymask-v2/test-app-config.json:/app/packages/test-app/src/test-app-config.json
       - ../config/watcher-mobymask-v2/test-app-start.sh:/app/packages/test-app/test-app-start.sh
+      - peers_ids:/peers
     ports:
       - "0.0.0.0:3003:3000"
     healthcheck:
@@ -24,3 +25,6 @@ services:
       start_period: 10s
     extra_hosts:
       - "host.docker.internal:host-gateway"
+
+volumes:
+  peers_ids: