Update NCPlayerToolBar.swift

iOSClient/Viewer/NCViewerMedia/NCPlayer/NCPlayerToolBar.swift

@@ -87,7 +87,7 @@ class NCPlayerToolBar: UIView {
         playButton.setImage(NCUtility.shared.loadImage(named: "play.fill", color: .white, symbolConfiguration: UIImage.SymbolConfiguration(pointSize: pointSize)), for: .normal)
         forwardButton.setImage(NCUtility.shared.loadImage(named: "goforward.10", color: .white, symbolConfiguration: UIImage.SymbolConfiguration(pointSize: pointSize)), for: .normal)
 
-        playbackSlider.setThumbImage(UIImage(systemName: "circle.fill", withConfiguration: UIImage.SymbolConfiguration(pointSize: 10)), for: .normal)
+        playbackSlider.setThumbImage(UIImage(systemName: "circle.fill", withConfiguration: UIImage.SymbolConfiguration(pointSize: 15)), for: .normal)
         playbackSlider.value = 0
         playbackSlider.tintColor = .white
         playbackSlider.addTarget(self, action: #selector(playbackValChanged(slider:event:)), for: .valueChanged)