feat: disable hardSource (#3358)

config/config.js

@@ -34,7 +34,7 @@ const plugins = [
               include: ['dva', 'dva/router', 'dva/saga', 'dva/fetch'],
               exclude: ['@babel/runtime'],
             },
-            hardSource: true,
+            hardSource: false,
           }
         : {}),
     },