chore: let's use LF all the time

app/opacityhelper.h

@@ -1,27 +1,27 @@
-// SPDX-FileCopyrightText: 2022 Gary Wang <wzc782970009@gmail.com>
-//
-// SPDX-License-Identifier: MIT
-
-#ifndef OPACITYHELPER_H
-#define OPACITYHELPER_H
-
-#include <QWidget>
-
-QT_BEGIN_NAMESPACE
-class QGraphicsOpacityEffect;
-class QPropertyAnimation;
-QT_END_NAMESPACE
-
-class OpacityHelper : QObject
-{
-public:
-    OpacityHelper(QWidget * parent);
-
-    void setOpacity(qreal opacity, bool animated = true);
-
-protected:
-    QGraphicsOpacityEffect * m_opacityFx;
-    QPropertyAnimation * m_opacityAnimation;
-};
-
-#endif // OPACITYHELPER_H
+// SPDX-FileCopyrightText: 2022 Gary Wang <wzc782970009@gmail.com>
+//
+// SPDX-License-Identifier: MIT
+
+#ifndef OPACITYHELPER_H
+#define OPACITYHELPER_H
+
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QGraphicsOpacityEffect;
+class QPropertyAnimation;
+QT_END_NAMESPACE
+
+class OpacityHelper : QObject
+{
+public:
+    OpacityHelper(QWidget * parent);
+
+    void setOpacity(qreal opacity, bool animated = true);
+
+protected:
+    QGraphicsOpacityEffect * m_opacityFx;
+    QPropertyAnimation * m_opacityAnimation;
+};
+
+#endif // OPACITYHELPER_H