Link to the correct page in SceneComponent docs (#24366)

# Objective

Fix the `SceneComponent` docs directing to a non-existent "Scene
Components" section of the `Scene` docs

## Solution

Link to the section in the module docs instead

## Testing

Ran `cargo doc --no-deps` to see if the link was correct

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Co-authored-by: Carter Anderson <mcanders1@gmail.com>
Co-authored-by: Kevin Chen <chen.kevin.f@gmail.com>