Enhancement: support Claim and ClaimReview toggle with filters on repository page

### Background Information

Currently, the repository page only lists `Claim` items. This limits visibility of the fact-checking work itself, since the reviews (`ClaimReview`) produced by fact-checkers aren't shown anywhere on the page. Adding `ClaimReview` as a new item type will give more visibility to the checks performed on the platform, not just the claims being tracked.

### Steps to Reproduce

1. Go to the repository page.
2. Note that only `Claim` items are listed.
3. There is no way to view `ClaimReview` items, nor any filters for either list.

### How

- **Backend**: the `ClaimReview` list endpoint already exists. Confirm whether it currently accepts filter params (personality, topic, claim type, date range, review rating) and extend it if any are missing.
- **Frontend**:
- Add a toggle on the repository page to switch between the `Claim` list and the `ClaimReview` list.
- Add filters to the `Claim` list: personality, topic, claim type, date range.
- Add filters to the `ClaimReview` list: personality, topic, claim type, date range, and review rating/classification.

### Expected Behavior

- Users can toggle between viewing `Claim` items and `ClaimReview` items on the repository page.
- Each list has its own set of filters, as described above, and filtering returns accurate results per item type.
- Switching the toggle doesn't break or mix up filter state between the two lists.