Fix "make e2e-tests" on devstack
It seems that the switch to having Studio redirect to LMS for login has broken the e2e tests on devstack. That method only works correctly if Studio can access the LMS cookies, but that doesn't work with domains of "edx.devstack.lms" and "edx.devstack.studio", which is what currently has to be used to access those services from another docker container. Find a workaround which allows us to keep running the e2e tests easily in devstack; we might want to change the container names.
Steps to Reproduce
Reason for Variance
User Impact Summary
One option for a reverse proxy: https://traefik.io/ . A nice-to-have if we go the reverse proxy route would be to have the option of hitting URLs in devstack like "open.edx" and "studio.open.edx" from containers and the host system instead of remembering "localhost:18000", "edx.devstack.studio:18010", etc.
It looks like the two options here are to either reorder the naming of the containers or set up a proxy to alias the names of the containers, because we require a cookie w/ a shared domain name in order to be able to log into studio from the lms