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/.gitignore

@@ -9,6 +9,3 @@
 
 # node
 *.lock
-
-# dev/ci
-.ci/docker-compose.server.override.yml