Fix custom menu bar icon packaging

FchatiApp/Package.swift

@@ -7,8 +7,7 @@ let package = Package(
     targets: [
         .executableTarget(
             name: "FchatiApp",
-            path: "Sources/FchatiApp",
-            resources: [.process("Resources")]
+            path: "Sources/FchatiApp"
         ),
         .testTarget(
             name: "FchatiAppTests",

FchatiApp/Sources/FchatiApp/FchatiApp.swift

@@ -14,13 +14,24 @@ struct FchatiApp: App {
             RootView()
                 .background(WindowConfigurator())
         } label: {
-            Image("MenuBarIcon", bundle: .module)
-                .renderingMode(.original)
+            MenuBarIcon()
         }
         .menuBarExtraStyle(.window)
     }
 }
 
+private struct MenuBarIcon: View {
+    var body: some View {
+        if let url = Bundle.main.url(forResource: "MenuBarIcon", withExtension: "png"),
+           let image = NSImage(contentsOf: url) {
+            Image(nsImage: image)
+                .renderingMode(.original)
+        } else {
+            Image(systemName: "message")
+        }
+    }
+}
+
 // Prevents the popover from closing when clicking outside.
 private struct WindowConfigurator: NSViewRepresentable {
     func makeNSView(context: Context) -> NSView {