New comment I left is not displayed in the video's comment list

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### Steps to reproduce

1. Open a video, possibly a new one
2. Leave a comment
3. See no updates in the comment list

### Expected behaviour

Either to see the update immediately or to have a button to refresh the comments.

### Actual behaviour

Comments don't seem to refresh until I reopen the video.

## System Configuration
- Device: Asus ZenPhone ZB633KL
- Android version: 9

## Internal Use

### Acceptance Criteria
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### Definition of Done
- [ ] Tested against acceptance criteria
- [ ] Tested against the assumptions of the user story
- [ ] The project builds without errors
- [ ] Unit tests are written and passing
- [ ] Tests on devices/browsers listed in the issue have passed
- [ ] QA performed & issues resolved
- [ ] Refactoring completed
- [ ] Any configuration or build changes documented
- [ ] Documentation updated
- [ ] Peer Code Review performed

Start by reproducing the issue on the listed Asus ZenPhone running Android 9: open a video, submit a comment, and inspect the video comment list. Trace the comment submission and list-refresh flow, then verify that the new comment appears immediately or that a refresh action works, with tests covering the behavior and a successful project build.

Written by the indexing model from the issue text.