📝 docs(story): update environment variables in home default destination story

- remove TARO_APP_DEFAULT_START_PROVINCE_NAME and TARO_APP_DEFAULT_START_CITY_NAME variables
- add TARO_APP_DEFAULT_START_DISTRICT_ID variable
- update TARO_APP_DEFAULT_END_PROVINCE_ID, TARO_APP_DEFAULT_END_CITY_ID and add TARO_APP_DEFAULT_END_DISTRICT_ID variable
- adjust default region ID values to match new configuration requirements

docs/stories/007.005.home-default-destination.story.md

@@ -204,13 +204,11 @@ beforeEach(() => {
   process.env = {
     ...originalEnv,
     TARO_APP_DEFAULT_START_PROVINCE_ID: '1',
-    TARO_APP_DEFAULT_START_PROVINCE_NAME: '北京市',
     TARO_APP_DEFAULT_START_CITY_ID: '2',
-    TARO_APP_DEFAULT_START_CITY_NAME: '北京市',
-    TARO_APP_DEFAULT_END_PROVINCE_ID: '3',
-    TARO_APP_DEFAULT_END_PROVINCE_NAME: '上海市',
-    TARO_APP_DEFAULT_END_CITY_ID: '4',
-    TARO_APP_DEFAULT_END_CITY_NAME: '上海市'
+    TARO_APP_DEFAULT_START_DISTRICT_ID: '3',
+    TARO_APP_DEFAULT_END_PROVINCE_ID: '4',
+    TARO_APP_DEFAULT_END_CITY_ID: '5',
+    TARO_APP_DEFAULT_END_DISTRICT_ID: '6'
   }
 })