Test clarity

[ballPointPenguin]

• update Makefile to use accurate test commands
• update e2e/README to add clarity around running tests
• update package versions in e2e

All tests passing for me locally running:

make TEST start
make e2e-install
make e2e-run

[ballPointPenguin]

The one bit of strangeness for me is that 'shows the visualization after 7 participants' passes when running cypress interactively but not as part of make e2e-run.

I've often seen the same. I wonder if the headless runner is a little too fast. It tends to pass on CI (though not consistently), which I expect is a slower machine than my laptop. 🤔

[ballPointPenguin]

Now for some reason the e2e suite is completely failing (on all branches). I suspect a Github Actions config issue, since there was not a code merge that broke the suite. Test are still passing for me locally.

UPDATE: fixed it by waiting a bit (and running a health check api call until status 200)