Use Max() instead of conditional statement

Suggested in code review, see !599

Co-authored-by: Andrii Chebukin <XperiAndri@Outlook.com>

components/DataTable/src/DataTable/DataTable.cs

@@ -96,8 +96,7 @@ protected override Size MeasureOverride(Size availableSize)
 
                 // Avoid negative values when columns don't fit `availableSize`. Otherwise the `Size` constructor will throw.
                 double width = availableSize.Width - fixedWidth - autoSized;
-                if (width < 0)
-                    width = 0;
+                width = Math.Max(width, 0);
                 column.Measure(new Size(width, availableSize.Height));
 
                 // Keep track of already 'allotted' space, use either the maximum child size (if we know it) or the header content