Fixed bug => load instance private images

...t/src/app/instance/home/components/welcome.component.html

...nt/src/app/portal/components/instance-card.component.html

client/src/app/shared/components/navbar.component.html

client/src/app/shared/pipes/auth-image.pipe.ts

client/src/app/shared/pipes/index.ts

docker-compose.yml

server/src/Action/AbstractAction.php

server/src/Action/DatasetListByInstanceAction.php