Qt6: move connection into C++ source

This no longer compiles when defined in the .ui file. But functionally this
should be the same and it should work on Qt5 and Qt6.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

desktop-widgets/diveshareexportdialog.cpp

@@ -18,6 +18,8 @@ DiveShareExportDialog::DiveShareExportDialog(QWidget *parent) :
 	exportSelected(false)
 {
 	ui->setupUi(this);
+	// creating this connection in the .ui file appears to fail with Qt6
+	connect(ui->getUIDbutton, &QPushButton::clicked, this, &DiveShareExportDialog::UIDFromBrowser);
 }
 
 DiveShareExportDialog::~DiveShareExportDialog()

desktop-widgets/diveshareexportdialog.ui

@@ -235,22 +235,6 @@ p, li { white-space: pre-wrap; }
     </hint>
    </hints>
   </connection>
-  <connection>
-   <sender>getUIDbutton</sender>
-   <signal>clicked()</signal>
-   <receiver>DiveShareExportDialog</receiver>
-   <slot>UIDFromBrowser()</slot>
-   <hints>
-    <hint type="sourcelabel">
-     <x>223</x>
-     <y>29</y>
-    </hint>
-    <hint type="destinationlabel">
-     <x>159</x>
-     <y>215</y>
-    </hint>
-   </hints>
-  </connection>
   <connection>
    <sender>doUploadButton</sender>
    <signal>clicked()</signal>