Update NostrFeed and Home components for improved styling and layout

- Modified NostrFeed.vue to enhance the post list styling with updated divider classes for better visual separation.
- Adjusted Home.vue button styles to include background color and border enhancements, improving the overall appearance and user interaction.

These changes refine the user interface, contributing to a more polished and engaging experience.

src/modules/nostr-feed/components/NostrFeed.vue

@@ -175,7 +175,7 @@ function onReplyToNote(note: any) {
 
       <!-- Posts List - Full height scroll -->
       <div v-else class="h-full overflow-y-auto scrollbar-thin scrollbar-thumb-border scrollbar-track-transparent">
-        <div class="divide-y divide-border">
+        <div class="divide-y-2 divide-muted/30">
           <div v-for="note in notes" :key="note.id">
             <!-- Market Product Component (kind 30018) -->
             <template v-if="note.kind === 30018">