Corrected Dockerfile paths for Elsa.Server and Elsa.Studio, and added Datadog tracing and related environment variables. Included Datadog.Trace package in Elsa.Server.Web project and updated Elsa.Studio package versions to 3.3.0-preview.466.
Changed paths from "bundles" to "apps" in multiple Dockerfiles to standardize the directory structure. This ensures all Dockerfiles use a consistent directory naming convention across the project.
Create new docker-compose files for non-data dog and data dog services. New services include Postgres, cockroachdb, rabbitmq, redis, and elsa-server. Along with the services, a new bash script for migration and various new activities and endpoints are also added for the Elsa server. This set of changes broadens the operational environment of Elsa.
