The page count is wrong when initially opening Git Operations

## Steps to Reproduce the Problem

1. Open `jjui`
2. Press Git Operations with `g`
3. Observe the page counter is `1/9`
4. Navigate to a different operation
5. Observe the pagination count now stays at `1/1` regardless of which remote or operation is selected

## Specifications

- Platform: macOS Sequoia 15.7.3
- Version: `94a4a87454587903051f55734327409baa4fff65` (latest `main`)
