chore: allow drag to move window when maximized when Qt >= 6.11.2

Resolve: https://github.com/BLumia/pineapple-pictures/issues/184

Also use git version of aqtinstall for Qt 6.11.0+ for Windows
miurahr/aqtinstall#1007

app/mainwindow.cpp

@@ -357,7 +357,7 @@ void MainWindow::leaveEvent(QEvent *event)
 
 void MainWindow::mousePressEvent(QMouseEvent *event)
 {
-#if defined(Q_OS_WIN)
+#if defined(Q_OS_WIN) and QT_VERSION < QT_VERSION_CHECK(6, 11, 2)
     const bool shouldAcceptDrag = !isMaximized() && !isFullScreen();
 #else
     const bool shouldAcceptDrag = !isFullScreen();

app/titlebar.cpp

@@ -136,7 +136,7 @@ void TitleBar::mouseMoveEvent(QMouseEvent *event)
         }
     }
 
-#if defined(Q_OS_WIN)
+#if defined(Q_OS_WIN) and QT_VERSION < QT_VERSION_CHECK(6, 11, 2)
     const bool shouldAcceptDrag = !window()->isMaximized() && !window()->isFullScreen();
 #else
     const bool shouldAcceptDrag = !window()->isFullScreen();