Add menu icons and improve UI polish

- Add separator before About VibeTunnel menu item
- Update README to use new banner image
- Add high-resolution app icons and banner assets
- Improve menu bar icon visibility

README.md

@@ -1,6 +1,4 @@
-<div align="center">
-  <img src="VibeTunnel/AppIcon.icon/Assets/vibe_tunnel_clean.png" alt="VibeTunnel Logo" width="128" height="128">
-</div>
+![VibeTunnel Banner](assets/banner.png)
 
 # VibeTunnel
 

VibeTunnel/Presentation/Views/MenuBarView.swift

@@ -52,8 +52,6 @@ struct MenuBarView: View {
                         Label("Show Tutorial", systemImage: "book")
                     }
                     
-                    Divider()
-                    
                     // Website
                     Button(action: {
                         if let url = URL(string: "http://vibetunnel.sh") {
@@ -72,8 +70,6 @@ struct MenuBarView: View {
                         Label("Report Issue", systemImage: "exclamationmark.triangle")
                     }
 
-                    Divider()
-
                     // Check for Updates
                     Button(action: {
                         SparkleUpdaterManager.shared.checkForUpdates()
@@ -85,6 +81,8 @@ struct MenuBarView: View {
                     Text("Version \(appVersion)")
                         .foregroundColor(.secondary)
 
+                    Divider()
+
                     // About
                     SettingsLink {
                         Label("About VibeTunnel", systemImage: "info.circle")