fixed group width containing notes

src/core/utils.typ

@@ -104,4 +104,14 @@
 #let get-ctx(func) = draw.get-ctx(c => {
   let ctx = c.shared-state.chronos
   func(ctx)
+})
+
+#let expand-parent-group(x0, x1) = set-ctx(ctx => {
+  if ctx.groups.len() != 0 {
+    let group = ctx.groups.last()
+    group.min-x = calc.min(group.min-x, x0)
+    group.max-x = calc.max(group.max-x, x1)
+    ctx.groups.last() = group
+  }
+  return ctx
 })