I have created two new repositories on DockerHub, one for the currently
existing backend image, and one for the future frontend image.
I searched-replaced all occurences of "lasuite/impress-frontend" or "lasuite/impress-backend".
One image won't exist anymore, "impress-y-webrtc-signaling", I have
removed the steps building and pushing its image to the DockerHub account.
890a58b133