[Feature]: E2E tests

[r2dev2]

Checklist

• [X] This is an issue for Hyperchat, not LiveTL. I will go to the LiveTL repo to report an issue for LiveTL.
• [X] I have checked for a duplicate or similar issue. I made sure to check closed issues as well.
• [X] I am not reporting a bug. If I am, I will use the bug report issue template.
• [X] By submitting this issue, you agree to follow our Code of Conduct

Is your feature request related to a problem? Please describe.

there are many scenarios to test hc with

Describe the solution you'd like

selenium tests like we have in ltl

Expected behavior

why is this a category for feature requests

Describe alternatives you've considered

bru

Anything else?

congratulations @KentoNishi on being a regeneron winner

[r2dev2]

Important info: there is progress on this in the e2e branch.