Configure SonarCloud to account for frontend unit test coverage

Currently we just use cypress coverage reports for sonarcloud coverage metrics, we should stitch together those reports and jest unit test reports.

Potentially as easy as adding the unit test coverage report path to: `sonar.javascript.lcov.reportPaths=web/coverage/lcov.info`

Start with the SonarCloud setting `sonar.javascript.lcov.reportPaths=web/coverage/lcov.info` and inspect how the existing Cypress and Jest coverage reports are generated. Configure the reports so SonarCloud accounts for both sources, then verify that the resulting frontend coverage metrics include unit-test coverage.

Written by the indexing model from the issue text.