fix type reference in addon skeleton

We cannot use this import directly, since it is only imported over type checking and might not exists in v2 (no qt installed) this would not only prevent the addon, but the whole application from starting.

Author: AndreWohnsland

src/programs/addon_skeleton.py

@@ -1,4 +1,4 @@
-from typing import Any, Callable, TYPE_CHECKING
+from typing import TYPE_CHECKING, Any, Callable
 
 if TYPE_CHECKING:
     from PyQt5.QtWidgets import QVBoxLayout
@@ -22,8 +22,8 @@
 
 # Use the LoggerHandler class for your logger
 from src.logger_handler import LoggerHandler
-
 from src.models import Cocktail
+
 # The addon interface will provide intellisense for all possible methods
 from src.programs.addons import AddonInterface
 
@@ -57,7 +57,7 @@ def cocktail_trigger(self, prepare: Callable[[Cocktail], tuple[bool, str]]):
         In addition, there is a message, which can contain further information.
         """
 
-    def build_gui(self, container: QVBoxLayout, button_generator: Callable[[str, Callable[[], None]], None]) -> bool:
+    def build_gui(self, container: "QVBoxLayout", button_generator: Callable[[str, Callable[[], None]], None]) -> bool:
         """Build up the GUI to do additional things on command.
 
         Returns