CLD-5699 Preliminary fixes (#25040)

* Rework some of PR24647
* Store MM_LICENSE to .env.server file
* Remove legacy network setup
* Fixes, generate docker-compose and env files in one place
* Simplify templating mechanism for server.yml
* Fix race condition for dashboard start
* Fix websockets for local debugging
* Fix: make webhook-interaction work again
* Simplify and fix dashboard&cloud configuration, formatting fix

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Co-authored-by: Mattermost Build <build@mattermost.com>

e2e-tests/.ci/dashboard.override.yml

@@ -13,10 +13,14 @@ services:
       JWT_EXPIRES_IN: 365d
       ALLOWED_USER: cypress-test
       ALLOWED_ROLE: integration
+    healthcheck:
+      test: ["CMD", "curl", "-s", "-o/dev/null", "127.0.0.1:4000"]
+      interval: 10s
+      timeout: 15s
+      retries: 12
     volumes:
       - "../:/app"
       - "../../dashboard.entrypoint.sh:/usr/local/bin/dashboard.entrypoint.sh:ro"
-      - "../../.env.dashboard:/var/local/.env.dashboard:rw"
     working_dir: /app
     entrypoint: /usr/local/bin/dashboard.entrypoint.sh
     ports: