karma-coverage must be installed in order to run code coverage

```json
"karma": "^5.2.3",
"karma-chrome-launcher": "~3.1.0",
"karma-coverage": "^2.0.3",
"karma-jasmine": "~4.0.1",
"karma-jasmine-html-reporter": "^1.5.4",
"karma-spec-reporter": "0.0.32",
```

and installed

The issue names no files, tests, or entry points; start by reviewing the listed Karma dependencies and the project's coverage installation setup. Reproduce the reported requirement and compare it with the expected setup. Done means the installation behavior is corrected or clearly documented.

Written by the indexing model from the issue text.