makes the dashboard title configurable.

[fbettag]

Change description

This adds the configuration variable titleto dashboard_assigns, making it possible to use a different name for the dashboard, other than MyProject.

What problem does this solve?

I have multiple versions of the same codebase running, thus in my Grafana the Dashboards get overriden since they all have the same otp_name.

Example usage

  def dashboard_assigns do
    [
      datasource_id: PetalPro.config(:prometheus_datasource_id),
      default_selected_interval: "30s",
      title: "ainomaly.io"
    ]
  end