Removed hardcoded environment variables from the `common.yaml` template and
refactored them to utilize the newly structured values from `Values.controllers.main.containers.main.env`.
This change enhances maintainability and clarity by aligning environmental
variables with the current values schema. Additionally, the code was cleaned
up by ensuring proper indentation and structure for readability.
No breaking changes or significant shifts in functionality were introduced;
the refactor merely improves the organization of environment configuration.
Marko Oldenburg
ac8181519c