fixes regression, bus focus in/out readded

patch bump

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "nvda_voicemeeter"
-version = "0.4.0"
+version = "0.4.1"
 description = "A Voicemeeter app compatible with NVDA"
 authors = [
     { name = "onyx-and-iris", email = "code@onyxandiris.online" },

src/nvda_voicemeeter/window.py

@@ -270,6 +270,8 @@ class NVDAVMWindow(psg.Window):
 
         # Bus Sliders
         for i in range(self.kind.num_bus):
+            self[f"BUS {i}||SLIDER GAIN"].bind("<FocusIn>", "||FOCUS IN")
+            self[f"BUS {i}||SLIDER GAIN"].bind("<FocusOut>", "||FOCUS OUT")
             for event in ("KeyPress", "KeyRelease"):
                 event_id = event.removeprefix("Key").upper()
                 for direction in ("Left", "Right", "Up", "Down"):