refactor(Image): unify altText #6478

Job	Run time
get-content-file	5s
code-quality / npm run format	33s
code-quality / npm run lint	1m 4s
code-quality / npm run typecheck	39s
code-quality / npm run test:coverage	2m 45s
verify-local-e2e / e2e-tests (1)	1m 55s
verify-local-e2e / e2e-tests (2)	1m 15s
verify-local-e2e / e2e-tests (3)	1m 45s
verify-local-e2e / e2e-tests (4)	1m 19s
verify-local-e2e / merge-reports	0s
build-push-app-image	3m 33s
deploy-staging	1m 30s
deploy-preview	1m 23s
verify-preview-e2e / e2e-tests (1)	6m 3s
verify-preview-e2e / e2e-tests (2)	1m 49s
verify-preview-e2e / e2e-tests (3)	5m 5s
verify-preview-e2e / e2e-tests (4)	2m 36s
verify-preview-e2e / merge-reports	31s
deploy-production	0s
test-production-text	0s
Send failure message to Slack	3s
	33m 53s

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