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

---------

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

e2e-tests/.ci/dashboard.stop.sh

@@ -2,11 +2,11 @@
 set -e -u -o pipefail
 cd "$(dirname "$0")"
 . .e2erc
-. .e2erc_setup
 
 if [ -d dashboard ]; then
   mme2e_log "Stopping the dashboard containers"
   ${MME2E_DC_DASHBOARD} down
 else
+  # Base docker-compose file is found in the dashboard repo, we can't run docker commands without it
   mme2e_log "Not stopping the dashboard containers: dashboard repo not checked out locally, skipping"
 fi