Proposed title of this feature request*

Adding an ability to allow/customize dashboard logo using configmap instead of  inline base64 image in Devspaces 

What is the nature and description of the request?

Currently the dashboard logo is been managed/updated via CRD. Following is the example of the changes that are made via CRD. 

    dashboard:
      branding:
        logo:
          base64data: {{ tpl (.Files.Get "logo.png") . | b64enc }}
          mediatype: image/png

However there is an requirement to make this customizable via `configmap`. 

Why does the customer need this? (List the business requirements here)*

It makes it hard to read CheCluster instance especially in ArgoCD because the custom logo base64 encoding spans multiple lines.