fix: change named import to default import (#61)

Author: Alan Wang

transformations/__tests__/root-prop-to-use.spec.ts

@@ -44,8 +44,8 @@ defineInlineTest(
   transform,
   { rootPropName: '', isGlobalApi: true },
   `Vue.createApp();`,
-  `import { api1 } from "../src/directive/permission/api1.js";
-import { api2 } from "../src/directive/api2.js";
+  `import api1 from "../src/directive/permission/api1.js";
+import api2 from "../src/directive/api2.js";
 Vue.createApp().use(api1).use(api2);`,
   'Can recognize global api use'
 )

transformations/root-prop-to-use.ts

@@ -62,8 +62,8 @@ export const transformAST: ASTTransformation<Params> = (
         { root, j },
         {
           specifier: {
-            type: 'named',
-            imported: api.name
+            type: 'default',
+            local: api.name
           },
           source: '../' + api.path
         }