Add customizable `look and feel` for portal

[baldarn]

Is your feature request related to a problem? Please describe. I would like to customize the docker-compose with the install.sh script.

I would like to customize the UI via docker compose for my instance of Harbor

I would like also to customize this parameters with the harbor.yml file

Describe the solution you'd like Add configurations to harbor.yml file, then to be used from the docker-compose.yml and the helm system

Describe the main design/architecture of your solution Using the current architecture of the system

Describe the development plan you've considered ND

Additional context Add any other context or screenshots about the feature request here.