Tweak browser extension e2e tests
Created by: lguychard
- "Provide tooltips for single file": wait for the code view toolbar to hover over the element. This ensures that we don't hover before the code view has been added/codeintellify has added event listeners. I have seen some flakiness related to this.
- Add browser console logs: like in web e2e tests, browser console logs can be nice to quickly see some issues on buildkite, eg.: were the code views added? Was there a JS error in the console?