feat(pygal): implement scatter-animated-controls (#3152)

## Implementation: `scatter-animated-controls` - pygal

Implements the **pygal** version of `scatter-animated-controls`.

**File:** `plots/scatter-animated-controls/implementations/pygal.py`

**Parent Issue:** #3067

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:robot: *[impl-generate
workflow](https://github.com/MarkusNeusinger/pyplots/actions/runs/20627531071)*

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