fix: remove undefined width/height from useEffect dependency array

The width and height variables were defined inside the useEffect callback
but incorrectly referenced in the dependency array (outside that scope),
causing ReferenceError at runtime.

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/matrix-frontend/src/widgets/DataAnalysisWidget.tsx

@@ -154,7 +154,7 @@ export default function DataAnalysisWidget() {
                 .attr("d", line);
         }
 
-    }, [data, xAxis, yAxis, chartType, width, height, analysis]); 
+    }, [data, xAxis, yAxis, chartType, analysis]); 
 
     // Basic Analysis (Client Side)
     const runBasicAnalysis = () => {