better usability

cht/window.py

@@ -563,7 +563,17 @@ class ChtWindow(Adw.ApplicationWindow):
 
     def _setup_keyboard(self):
         kb = KeyboardManager()
-        kb.set_passthrough(lambda: self.get_focus() is self._input_entry, except_keys={KEY_ESCAPE})
+        def _entry_focused():
+            focus = self.get_focus()
+            if focus is None:
+                return False
+            w = focus
+            while w is not None:
+                if w is self._input_entry:
+                    return True
+                w = w.get_parent()
+            return False
+        kb.set_passthrough(_entry_focused, except_keys={KEY_ESCAPE})
         kb.bind(KEY_LEFT, lambda **_: self._frames_panel.select_adjacent(-1))
         kb.bind(KEY_RIGHT, lambda **_: self._frames_panel.select_adjacent(1))
         kb.bind(KEY_UP, lambda shift=False, **_: self._transcript_panel.select_adjacent(-1, extend=shift))