Use static QFile::exists instead of creating object

apps/launcher/datafilespage.cpp

@@ -401,11 +401,8 @@ QStringList Launcher::DataFilesPage::selectedFilePaths() const
     ContentSelectorModel::ContentFileList items = mSelector->selectedFiles();
     QStringList filePaths;
     for (const ContentSelectorModel::EsmFile* item : items)
-    {
+        if (QFile::exists(item->filePath()))
-        QFile file(item->filePath());
-        if (file.exists())
             filePaths.append(item->filePath());
-    }
     return filePaths;
 }
 

apps/wizard/existinginstallationpage.cpp

@@ -50,9 +50,8 @@ bool Wizard::ExistingInstallationPage::validatePage()
     // Or failed to be detected due to the target being a symlink
 
     QString path(field(QLatin1String("installation.path")).toString());
-    QFile file(mWizard->mInstallations[path].iniPath);
 
-    if (!file.exists())
+    if (!QFile::exists(mWizard->mInstallations[path].iniPath))
     {
         QMessageBox msgBox;
         msgBox.setWindowTitle(tr("Error detecting Morrowind configuration"));