Remove or replace author

https://d33v4339jhl8k0.cloudfront.net/inline/67942/1635135e12b6508f62cc212081c85985106dc9f1/ea07d100168142940e22d680676649f198bbcfbe/xc_9.png

We show author on claim pages, but this field is not used by the app anymore as it's been replaced by channel. We should remove or replace it with the channel (but the channel is already shown in "published by"

## Internal Use

### Acceptance Criteria
1.
2.
3.

### 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 locating the claim-page UI and the display of the author field shown in the linked screenshot. Determine whether the obsolete author should be removed or replaced, considering that the channel already appears in “published by.” Done means the claim page no longer shows a redundant author and the project builds with relevant tests passing.

Written by the indexing model from the issue text.