pref(window): 仅主窗口加载图标

- 移除 _configure_ui 中的默认图标加载逻辑
- 将默认图标加载逻辑移至 _configure_ui_withdraw 中
- 优化代码结构，提高可读性和可维护性

Author: Jesse205

src/vcf_generator_lite/window/base/__init__.py

@@ -38,16 +38,11 @@ def __init__(self):
         self._configure_ui()
 
     def _configure_ui_withdraw(self):
-        self.__apply_default_icon()
         self.__apply_default_events()
 
     def _configure_ui(self):
         self.center()
 
-    def __apply_default_icon(self):
-        _logger.debug(f"窗口 {self.winfo_name()} 默认图标为 icon-48.png")
-        self.iconphoto(True, PhotoImage(master=self, data=resources.read_binary("images/icon-48.png")))
-
     def __apply_default_events(self):
         self.protocol("WM_DELETE_WINDOW", lambda: self.event_generate(EVENT_EXIT))
         self.bind(EVENT_EXIT, lambda _: self.destroy())
@@ -66,6 +61,10 @@ def _configure_ui_withdraw(self):
         if not self._theme_applied:
             self.set_theme(create_platform_theme())
         super()._configure_ui_withdraw()
+        self.__apply_default_icon()
+
+    def __apply_default_icon(self):
+        self.iconphoto(True, PhotoImage(master=self, data=resources.read_binary("images/icon-48.png")))
 
     def set_theme(self, theme: Theme):
         theme.apply_theme(self, Style(self))