To not create a breaking change, the logo in the
theme customization is now optional, meaning that
if no logo is provided, the default logo will be used.
We add some documentation about this feature.
To have different footer per instance the
content of the footer is now configurable
from the theme customization file.
See THEME_CUSTOMIZATION_FILE_PATH env var.
In order to load a custom theme file with our helm chart, we allow to
load the content of a file into a config map and then use this configmap
as a volume in the backend deployment
