2272 client - Match close button size with other header buttons in workflow code editor

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ivicac

client/src/pages/platform/workflow-editor/components/WorkflowCodeEditorSheet.tsx

@@ -159,10 +159,10 @@ const WorkflowCodeEditorSheet = ({
 
                             <SheetClose asChild>
                                 <Button
-                                    className="mb-2.5 ml-1"
+                                    className="[&_svg]:size-5"
                                     icon={<XIcon />}
                                     onClick={() => handleOpenChange(false)}
-                                    size="iconXs"
+                                    size="icon"
                                     variant="ghost"
                                 />
                             </SheetClose>