Ensure vertical lines are drawn even on final right pixel

Author: jassmith

packages/core/src/data-grid/data-grid-render.tsx

@@ -427,7 +427,7 @@ function drawGridLines(
         if (c.width === 0) continue;
         x += c.width;
         const tx = c.sticky ? x : x + translateX;
-        if (tx >= minX && tx <= maxX - 1 && verticalBorder(index + 1)) {
+        if (tx >= minX && tx <= maxX && verticalBorder(index + 1)) {
             toDraw.push({
                 x1: tx,
                 y1: Math.max(groupHeaderHeight, minY),