Set minimum width for Launch OpenMW button

apps/launcher/maindialog.cpp

@@ -58,6 +58,8 @@ Launcher::MainDialog::MainDialog(const Files::ConfigurationManager& configuratio
     buttonBox->button(QDialogButtonBox::Ok)->setText(tr("Launch OpenMW"));
     buttonBox->button(QDialogButtonBox::Help)->setText(tr("Help"));
 
+    buttonBox->button(QDialogButtonBox::Ok)->setMinimumWidth(160);
+
     // Order of buttons can be different on different setups,
     // so make sure that the Play button has a focus by default.
     buttonBox->button(QDialogButtonBox::Ok)->setFocus();