fix: color position label white

Fix position label color to white so it stays visible
regardless of theme.

Author: csponge

tagstudio/src/qt/widgets/media_player.py

@@ -240,6 +240,7 @@ def __init__(self, driver: "QtDriver") -> None:
         master_layout.addWidget(self.sub_controls, 1, 0)
 
         self.position_label = QLabel("0:00")
+        self.position_label.setStyleSheet("color: #ffffff;")
         master_layout.addWidget(self.position_label, 1, 1)
         master_layout.setAlignment(self.position_label, Qt.AlignmentFlag.AlignRight)
         self.position_label.hide()