tests: add test to stop building feature

[Cristhianzl]

• This PR introduces a new test that verifies the behavior of the UI when the building is in two different states: running and stopped.

✨ (use-icons-status.tsx): Add data-testid attribute to Loading component for testing purposes
✨ (index.tsx): Add data-testid attribute to stop building button for testing purposes
✨ (stop-building.spec.ts): Add end-to-end test to ensure user can stop a building process

[github-actions]

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_{Last Modified at 15 Aug 24 18:30 UTC}

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[anovazzi1]

LGTM

[anovazzi1]

LGTM