fix(sample): forced number conversion to avoid errors from reading th… (#731)

Author: tishko0

samples/grids/grid/finjs/src/index.tsx

@@ -121,7 +121,7 @@ export default function FinjsSample() {
     const rowData = gridRef.current.getRowData(cell.id.rowID);
     const isValueUp: boolean = trends.positive(rowData);
     const icon = isValueUp ? "trending_up" : "trending_down";
-    const value = cell.value.toFixed(4);
+    const value = parseFloat(cell.value).toFixed(4);
 
     return (
       <div className={`finjs-icons ${isValueUp ? "positive" : "negative"}`}>