Some tweaks to the add delimited text layer dialog

- Avoid the crs widget display when there is no geometry expected in the layer
- Align the crs widget with other geometry related settings
- various cleanup of the ui file and tab order

(cherry picked from commit 307c497)

src/providers/delimitedtext/qgsdelimitedtextsourceselect.cpp

@@ -57,6 +57,7 @@ QgsDelimitedTextSourceSelect::QgsDelimitedTextSourceSelect( QWidget *parent, Qt:
 
   connect( bgFileFormat, static_cast < void ( QButtonGroup::* )( int ) > ( &QButtonGroup::buttonClicked ), swFileFormat, &QStackedWidget::setCurrentIndex );
   connect( bgGeomType, static_cast < void ( QButtonGroup::* )( int ) > ( &QButtonGroup::buttonClicked ), swGeomType, &QStackedWidget::setCurrentIndex );
+  connect( bgGeomType, static_cast < void ( QButtonGroup::* )( int ) > ( &QButtonGroup::buttonClicked ), this, &QgsDelimitedTextSourceSelect::showCrsWidget );
 
   cmbEncoding->clear();
   cmbEncoding->addItems( QgsVectorDataProvider::availableEncodings() );
@@ -779,3 +780,9 @@ void QgsDelimitedTextSourceSelect::showHelp()
 {
   QgsHelp::openHelp( QStringLiteral( "managing_data_source/opening_data.html#importing-a-delimited-text-file" ) );
 }
+
+void QgsDelimitedTextSourceSelect::showCrsWidget()
+{
+  crsGeometry->setVisible( !geomTypeNone->isChecked() );
+  textLabelCrs->setVisible( !geomTypeNone->isChecked() );
+}

src/providers/delimitedtext/qgsdelimitedtextsourceselect.h

@@ -55,6 +55,7 @@ class QgsDelimitedTextSourceSelect : public QgsAbstractDataSourceWidget, private
     QButtonGroup *bgFileFormat = nullptr;
     QButtonGroup *bgGeomType = nullptr;
     void showHelp();
+    void showCrsWidget();
 
   public slots:
     void addButtonClicked() override;