refactor: Improve layout and responsiveness of NostrFeed and Home components

- Adjust NostrFeed.vue to enhance the scroll area height for better adaptability across screen sizes.
- Update Home.vue to refine the container's padding and width for improved layout consistency on various devices.

src/components/nostr/NostrFeed.vue

@@ -131,7 +131,7 @@ function formatDate(timestamp: number): string {
 </script>
 
 <template>
-  <div class="w-full max-w-3xl mx-auto p-4">
+  <div class="w-full max-w-3xl mx-auto">
     <Card class="w-full">
       <CardHeader>
         <CardTitle class="flex items-center gap-2">