Get e2e testing of comment translation working

[patcon]

Needs credentials for Google Translate API in repo's secrets.

polis/.github/workflows/cypress-tests.yml

Lines 75 to 86 in d83d32a

	- name: "Run Cypress tests: comment translation"
	if: env.DO_COMMENT_TRANSLATION
	uses: cypress-io/github-action@v2
	env:
	CYPRESS_BASE_URL: https://localhost
	with:
	install: false
	working-directory: ./e2e
	spec: "**/comment-translation.secrets.spec.js"
	# Prevent cypress from discarding screenshots/videos from default test run.
	config: "trashAssetsBeforeRuns=false"
	browser: chrome