[FEATURE] Allow customizing dashboard UID

Is your feature request related to a problem? Please describe.

Knowing the dashboard UID beforehand can be useful when creating links to dashboards in alerts etc. Currently one has to upload the dashboards before the dashboard link can be determined.
Long hashes are only useful when you don't need to know the UID

Describe the solution you would like to see

Allow adding uid parameter to plugins to overwrite the default hash created in dashboard renderer.

How would you expect this feature to work

Within MyApp.PromEx module

@impl true
  def plugins do
    [
      # Injecting dashboard uid's 
      {Plugins.Application, dashboard_uid: "myapp_application"}
      {Plugins.PhoenixLiveView, dashboard_uid: "myapp_phoenix_liveview"}
      {Plugins.Ecto, dashboard_uid: "myapp_ecto"}
      {Plugins.Oban, dashboard_uid: "myapp_oban"}
      {Plugins.Beam, dashboard_uid: "myapp_beam"}
    ]
  end

Additional context

This is the main functionality that would have to be updated: https://github.com/akoutmos/prom_ex/blob/master/lib/prom_ex/dashboard_renderer.ex#L90C3-L90C3 (dashboard renderer)

akoutmos / prom_ex

[FEATURE] Allow customizing dashboard UID #214