new tool timer & alert revamp

website/src/components/ToastPositionSwitch.jsx

@@ -0,0 +1,20 @@
+// Rôle : affiche le switch global de position des notifications internes.
+import React from "react";
+import { Icon } from "./Icon.jsx";
+
+export function ToastPositionSwitch({ position, labels, onChange }) {
+  const normalizedPosition = position === "left" ? "left" : "right";
+  return (
+    <button
+      className="toast-position-switch"
+      type="button"
+      data-position={normalizedPosition}
+      onClick={() => onChange(normalizedPosition === "left" ? "right" : "left")}
+      aria-label={normalizedPosition === "left" ? labels.left : labels.right}
+      title={labels.title}
+    >
+      <span><Icon name="toast-left" /></span>
+      <span><Icon name="toast-right" /></span>
+    </button>
+  );
+}