Fix collapsable pane

src/main.py

@@ -194,6 +194,15 @@ class Cast(wx.Frame):
             pane_sizer.Add(description, wx.GROW | wx.ALL, 2)
             pane_win.SetSizer(pane_sizer)
             pane_sizer.SetSizeHints(pane_win)
+            def fit_and_layout(_):
+                pane_sizer.Layout()
+                pane_sizer.Fit(pane_win)
+                inner_sizer.Layout()
+                inner_sizer.Fit(self)
+                self.m_sizer.Fit(self)
+                self.m_sizer.Layout()
+
+            collapsable_pane.Bind(wx.EVT_COLLAPSIBLEPANE_CHANGED, lambda event: fit_and_layout(event) )
             #inner_sizer.Add(description)
             self.m_sizer.Add(inner_sizer)
             self.m_sizer.AddSpacer(SPACER_HEIGHT)