Highlighted row in table jumping out of view

When I try something like this here https://github.com/charmbracelet/bubbletea/blob/cb6f8402f63d74df566577015ef10a75335eb242/examples/table/main.go#L25

```
case "tab":
m.table.SetCursor(m.table.Cursor() + 9)
```

The highlighted row can jump out of view.

Looking at this, I see a couple things
https://github.com/charmbracelet/bubbles/blob/0f9e38c9a7217bcd3d04b87c725c20047bc6aa64/table/table.go#L344-L362

1. Lines 358 and 360 don't follow the pattern of calling SetYOffset. Probably not a problem, but thought I'd point it out incase it was a mistake
2. `SetCursor` doesn't do this ViewPort clamping. Is this the issue? We can't access viewport from a user API, so it would need to be fixed in the main code.