chore: add rect::rows benchmark (#1301)

Cargo.toml

@@ -196,6 +196,10 @@ harness = false
 name = "list"
 harness = false
 
+[[bench]]
+name = "rect"
+harness = false
+
 [lib]
 bench = false
 

benches/rect.rs

@@ -0,0 +1,25 @@
+use criterion::{black_box, criterion_group, criterion_main, BenchmarkId, Criterion};
+use ratatui::layout::Rect;
+
+fn rect_rows_benchmark(c: &mut Criterion) {
+    let rect_sizes = vec![
+        Rect::new(0, 0, 1, 16),
+        Rect::new(0, 0, 1, 1024),
+        Rect::new(0, 0, 1, 65535),
+    ];
+    let mut group = c.benchmark_group("rect_rows");
+    for rect in rect_sizes {
+        group.bench_with_input(BenchmarkId::new("rows", rect.height), &rect, |b, rect| {
+            b.iter(|| {
+                for row in rect.rows() {
+                    // Perform any necessary operations on each row
+                    black_box(row);
+                }
+            });
+        });
+    }
+    group.finish();
+}
+
+criterion_group!(benches, rect_rows_benchmark);
+criterion_main!(benches);