fix(tui): replace spread-into-push in Container.render() to prevent stack overflow, closes #2651

packages/tui/src/tui.ts

@@ -202,7 +202,10 @@ export class Container implements Component {
 	render(width: number): string[] {
 		const lines: string[] = [];
 		for (const child of this.children) {
-			lines.push(...child.render(width));
+			const childLines = child.render(width);
+			for (const line of childLines) {
+				lines.push(line);
+			}
 		}
 		return lines;
 	}