[Snyk] Fix for 3 vulnerabilities (#1182)

* fix: package.json & package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-VITEST-8688130
- https://snyk.io/vuln/SNYK-JS-VITEST-8688125
- https://snyk.io/vuln/SNYK-JS-VITE-8648411

* add allowedHosts after upgrade of vite

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Co-authored-by: snyk-bot <snyk-bot@snyk.io>
Co-authored-by: Nils Gustav Stråbø <65334626+nilsgstrabo@users.noreply.github.com>