Make main window key and order to front in Skia/OSX port

src/she/osx/app.mm

@@ -38,6 +38,7 @@ int OSXApp::run(int argc, char* argv[])
 
   [app setActivationPolicy:NSApplicationActivationPolicyRegular];
   [app setDelegate:appDelegate];
+  [app activateIgnoringOtherApps:YES];
 
   app_main(argc, argv);
   return 0;

src/she/osx/window.mm

@@ -49,6 +49,7 @@ using namespace she;
   [self setDelegate:m_delegate];
   [self setContentView:view];
   [self center];
+  [self makeKeyAndOrderFront:self];
 
   return self;
 }