Qt: Fix delay in progress dialog opening

Applies to updater, verify, etc.

src/duckstation-qt/autoupdaterdialog.cpp

@@ -533,6 +533,7 @@ void AutoUpdaterDialog::downloadUpdateClicked()
   progress.SetStatusText(tr("Downloading %1...").arg(m_latest_sha).toUtf8().constData());
   progress.GetDialog().setWindowIcon(windowIcon());
   progress.SetCancellable(true);
+  progress.MakeVisible();
 
   m_http->CreateRequest(
     m_download_url.toStdString(),

src/duckstation-qt/gamesummarywidget.cpp

@@ -492,6 +492,7 @@ void GameSummaryWidget::onComputeHashClicked()
   QtModalProgressCallback progress_callback(this);
   progress_callback.SetCancellable(true);
   progress_callback.SetProgressRange(image->GetTrackCount());
+  progress_callback.MakeVisible();
 
   std::vector<CDImageHasher::Hash> track_hashes;
   track_hashes.reserve(image->GetTrackCount());

src/duckstation-qt/qthost.cpp

@@ -292,6 +292,7 @@ std::optional<bool> QtHost::DownloadFile(QWidget* parent, const QString& title,
   progress.GetDialog().setWindowTitle(title);
   progress.GetDialog().setWindowIcon(GetAppIcon());
   progress.SetCancellable(true);
+  progress.MakeVisible();
 
   http->CreateRequest(
     std::move(url),

src/duckstation-qt/qtprogresscallback.cpp

@@ -97,11 +97,13 @@ void QtModalProgressCallback::checkForDelayedShow()
     return;
 
   if (m_show_timer.GetTimeSeconds() >= m_show_delay)
-  {
+    MakeVisible();
-    m_dialog.setRange(0, m_progress_range);
+}
-    m_dialog.setValue(m_progress_value);
+void QtModalProgressCallback::MakeVisible()
-    m_dialog.show();
+{
-  }
+  m_dialog.setRange(0, m_progress_range);
+  m_dialog.setValue(m_progress_value);
+  m_dialog.show();
 }
 
 // NOTE: We deliberately don't set the thread parent, because otherwise we can't move it.

src/duckstation-qt/qtprogresscallback.h

@@ -31,6 +31,8 @@ public:
   bool ModalConfirmation(const std::string_view message) override;
   void ModalInformation(const std::string_view message) override;
 
+  void MakeVisible();
+
 private Q_SLOTS:
   void dialogCancelled();