Generate and mount the backend settings.yaml file using a configmap template

[bevalentin]

This file contains settings applying to the Application Quality instance such as the name, version, and URL templates.

In particular, the frontend uses the settings to adapt its behaviour and interface (displayed information and URLs).

Example settings.yaml content:

instance.name: EOEPCA - Application Quality Service
instance.version: "2.0.0-rc2"
instance.date: 2025-07-11
instance.theme: default
user_manual.url: https://eoepca.readthedocs.io/projects/application-quality/en/latest/usage/user-manual/
source.url: https://github.com/EOEPCA/application-quality/
deployment_guide.url: ""
design.url: https://eoepca.readthedocs.io/projects/architecture/en/latest/reference-architecture/application-quality-BB/
sso.enabled: true
workspace.enabled: false
grafana.enabled: true
grafana.url: /dashboards
grafana.pipeline_executions.path: "/d/pipeline-executions/pipeline-executions?from=now-90d&to=now"
grafana.pipeline_execution.path: "/d/pipeline-execution/pipeline-execution?var-execution_id={execution_id}&var-pipeline_id={pipeline_id}"
grafana.pipeline_execution_report.path: "/d/default-{tool_name}-report/{tool_name}-report?var-pipeline_id={pipeline_id}&var-execution_id={execution_id}&var-report_id={report_id}&var-tool_name={tool_name}"