dpmsinputfilter: don't wake up the screen on media or volume key events

It's pretty unexpected that the key press would be ignored and instead the screen
wakes up

src/dpmsinputeventfilter.cpp

@@ -51,6 +51,26 @@ bool DpmsInputEventFilter::wheelEvent(WheelEvent *event)
 
 bool DpmsInputEventFilter::keyEvent(KeyEvent *event)
 {
+    static constexpr std::array s_mediaKeys = {
+        Qt::Key::Key_MediaLast,
+        Qt::Key::Key_MediaNext,
+        Qt::Key::Key_MediaPause,
+        Qt::Key::Key_MediaPlay,
+        Qt::Key::Key_MediaPrevious,
+        Qt::Key::Key_MediaRecord,
+        Qt::Key::Key_MediaStop,
+        Qt::Key::Key_MediaTogglePlayPause,
+        Qt::Key::Key_VolumeUp,
+        Qt::Key::Key_VolumeDown,
+        Qt::Key::Key_VolumeMute,
+        Qt::Key::Key_MicVolumeUp,
+        Qt::Key::Key_MicVolumeDown,
+        Qt::Key::Key_MicMute,
+    };
+    if (std::ranges::find(s_mediaKeys, event->key()) != s_mediaKeys.end()) {
+        // don't wake up the screens for media or volume keys
+        return false;
+    }
     if (event->type() == QKeyEvent::KeyPress) {
         notify();
     } else if (event->type() == QKeyEvent::KeyRelease) {