Fix browser tests on CI
(previously was "Re-enable chrome tests for karma")
We had previously disabled running the unit/component tests (karma/mocha/chai/enzyme tests) on the chrome browser due to issues running it headlessly on certain environments. Right now, the tests are only ran on Firefox on both the CI & locally. This MR will re-enable chrome browser testing support.
The easy part is enabling it in
beat.editor's test config. It also already works locally. The hard part is enabling it on the CI.
This CI will just fix browser tests not running on the CI. Chrome CI support probably won't be happening right now, bar someone else figuring it out.