[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

khal/ui/__init__.py

@@ -243,7 +243,7 @@ def __init__(
             set_focus_date_callback=None,
             **kwargs) -> None:
         self._init: bool = True
-        self.parent: 'ClassicView' = parent
+        self.parent: ClassicView = parent
         self.delete_status = delete_status
         self.toggle_delete_instance = toggle_delete_instance
         self.toggle_delete_all = toggle_delete_all

khal/ui/calendarwidget.py

@@ -242,7 +242,7 @@ def __init__(self, walker: 'CalendarWalker') -> None:
         self.on_press = walker.on_press
         self._marked: Optional[MarkType] = None
         self._pos_old: Optional[Tuple[int, int]] = None
-        self.body: 'CalendarWalker'
+        self.body: CalendarWalker
         super().__init__(walker)
 
     @property