close tabs with middle mouse button

src/ui/CustomTabBar.py

@@ -0,0 +1,15 @@
+import PySide6
+from PySide6.QtCore import Qt
+from PySide6.QtWidgets import QTabBar
+
+
+class CustomTabBar(QTabBar):
+
+    def __init__(self):
+        super(CustomTabBar, self).__init__()
+
+    def mouseReleaseEvent(self, event: PySide6.QtGui.QMouseEvent) -> None:
+        print(event.button())
+        if event.button() == Qt.MouseButton.MiddleButton:
+            self.tabCloseRequested.emit(self.tabAt(event.pos()))
+        super(CustomTabBar, self).mouseReleaseEvent(event)