refactor(locale): 提取 locale 配置为 decman Module

locale_module.py

@@ -0,0 +1,16 @@
+import decman
+from decman import File, Module
+
+
+class LocaleModule(Module):
+    def __init__(self):
+        super().__init__("locale")
+
+    def files(self):
+        return {
+            "/etc/locale.conf": File(content="LANG=en_US.UTF-8\n"),
+            "/etc/locale.gen": File(content="en_US.UTF-8 UTF-8\n"),
+        }
+
+    def on_change(self, store):
+        decman.prg(["locale-gen"])