fix(client): nextTickの中でonUnmounted呼び出しても効かない可能性がある

packages/client/src/components/ui/tooltip.vue

@@ -180,12 +180,12 @@ const setPosition = () => {
 	el.value.style.top = top + 'px';
 };
 
+let loopHandler;
+
 onMounted(() => {
 	nextTick(() => {
 		setPosition();
 
-		let loopHandler;
-
 		const loop = () => {
 			loopHandler = window.requestAnimationFrame(() => {
 				setPosition();
@@ -194,11 +194,11 @@ onMounted(() => {
 		};
 
 		loop();
+	});
+});
 
-		onUnmounted(() => {
+onUnmounted(() => {
 	window.cancelAnimationFrame(loopHandler);
-		});
-	});
 });
 </script>