feat: make buttontotop selective

pages/index.vue

@@ -6,6 +6,7 @@ useTitle("Home");
 </script>
 
 <template>
+  <ButtonToTop />
   <main class="flex flex-col items-center justify-around gap-8">
     <h1>Welcome!</h1>
     <p>What are you here to see?</p>

pages/stories.vue

@@ -2,4 +2,6 @@
 useTitle("Stories");
 </script>
 
-<template></template>
+<template>
+  <main class="flex grow">hello</main>
+</template>