Remove macOS target - iOS only

Package.swift

@@ -7,8 +7,7 @@ let package = Package(
     name: "Bedrock",
     defaultLocalization: "en",
     platforms: [
-        .iOS(.v18),
-        .macOS(.v15)
+        .iOS(.v18)
     ],
     products: [
         .library(

Sources/Bedrock/Branding/IconGeneratorView.swift

@@ -139,6 +139,7 @@ public struct IconGeneratorView: View {
     
     @MainActor
     private func generateIcon() async {
+        #if canImport(UIKit)
         isGenerating = true
         generatedIcon = nil
         status = "Generating icon..."
@@ -167,6 +168,9 @@ public struct IconGeneratorView: View {
         }
         
         isGenerating = false
+        #else
+        status = "⚠️ Icon generation is only available on iOS"
+        #endif
     }
 }