fix(ios): watchOS embedded apps (#250)

Author: gabrielbiga

project-template-ios/internal/Swift-ObjC-Bridging-Header.h

@@ -10,5 +10,9 @@
 // the *-Swift.h*.
 // https://developer.apple.com/documentation/swift/imported_c_and_objective-c_apis/importing_objective-c_into_swift
 
-#import "NativeScript/NativeScript.h"
-#import "NativeScriptStart.h"
+#import "TargetConditionals.h"
+
+#ifndef TARGET_OS_WATCH
+    #import "NativeScript/NativeScript.h"
+    #import "NativeScriptStart.h"
+#endif