Add timestamps for updates in message history of detail view for q-alerts/investigations

**As** a User of Trace-X
**I want** to have time information for updates in message history of quality alerts/investigations
**so that** I have the possibility to check the time of updates.

## Link
- is blocked by https://github.com/eclipse-tractusx/traceability-foss/issues/423
- related to https://github.com/eclipse-tractusx/traceability-foss/issues/753

## Hints / Details
- Timestamps are currently only displayed for creation of quality alerts/investigations.
- See current detail view:
- Backend will be providing the information with https://github.com/eclipse-tractusx/traceability-foss/issues/423

## Acceptance Criteria
- [ ] Timestamps for updates in message history of detail view for quality alerts/investigations are available
- [x] https://github.com/eclipse-tractusx/traceability-foss/issues/753

## Out of Scope
- ...

Start with the quality-alert and investigation detail views and review the backend dependency in issue 423, which is expected to provide update timestamps. Confirm the existing creation timestamps and message history behavior, then verify that timestamps for updates are displayed in both detail views.

Written by the indexing model from the issue text.