fixed up look

apps/stock/web-app/src/components/charts/Chart.tsx

@@ -24,7 +24,7 @@ export interface TradeMarker {
 
 export interface ChartProps {
   data: ChartData[];
-  height?: number;
+  height?: number | string;
   type?: 'candlestick' | 'line' | 'area';
   showVolume?: boolean;
   theme?: 'light' | 'dark';
@@ -399,7 +399,10 @@ export function Chart({
     <div className={`relative ${className}`}>
       <div 
         ref={chartContainerRef} 
-        style={{ width: '100%', height: `${height}px` }}
+        style={{ 
+          width: '100%', 
+          height: typeof height === 'string' ? height : `${height}px` 
+        }}
       />
       <button
         onClick={resetZoom}