Only add file url if it references a local file

Remote URLs were converted to local file urls and converted to relative
paths, which led to bugs when copying URLs from e.g. the web
sites and pasting them into the command line.

Original patch by Allan Sandfeld Jensen.

Task-number: QTBUG-80243
Change-Id: I2cd41635b34b2ead424441719795705ef19d37f2
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

src/gui/platform/darwin/qmacmime.mm

@@ -664,7 +664,8 @@ QList<QByteArray> QMacPasteboardMimeFileUri::convertFromMime(const QString &mime
                 url.setHost(QLatin1String("localhost"));
             url.setPath(url.path().normalized(QString::NormalizationForm_D));
         }
-        ret.append(url.toEncoded());
+        if (url.isLocalFile())
+            ret.append(url.toEncoded());
     }
     return ret;
 }