Made the preferences dialog in Tape look a bit better with resizeable left column

--HG--
branch : feature

ChangeLog.txt

@@ -1,4 +1,5 @@
 # Version 0.5.0
+- [#479] Preferences dialog size is now saved between the sessions in Valentina and Tape app
 - [#479] Preferences dialog is now extendable and when it is opened again, it will be resized to its previous size.
 - [#193] Undeletable zombie arc objects.
 - New feature. Groups.

src/app/tape/dialogs/tapeconfigdialog.cpp

@@ -89,11 +89,12 @@ TapeConfigDialog::TapeConfigDialog(QWidget *parent)
 
     QVBoxLayout *mainLayout = new QVBoxLayout;
     mainLayout->addLayout(horizontalLayout);
-    mainLayout->addStretch(1);
     mainLayout->addSpacing(12);
     mainLayout->addLayout(buttonsLayout);
     setLayout(mainLayout);
 
+    mainLayout->setStretch(0, 1);
+
     setWindowTitle(tr("Config Dialog"));
 
     qApp->TapeSettings()->GetOsSeparator() ? setLocale(QLocale::system()) : setLocale(QLocale(QLocale::C));