macos: support dropping file urls onto surfaces

macos/Sources/Ghostty/SurfaceView.swift

@@ -133,7 +133,12 @@ extension Ghostty {
                             providers.forEach { provider in
                                 _ = provider.loadObject(ofClass: URL.self) { url, _ in
                                     guard let url = url else { return }
-                                    AppDelegate.logger.warning("OPEN url=\(url.path)")
+                                    DispatchQueue.main.async {
+                                        surfaceView.insertText(
+                                            url.path,
+                                            replacementRange: NSMakeRange(0, 0)
+                                        )
+                                    }
                                 }
                             }