wip: expose configureCompat via named export

packages/vue-compat/src/esm-index.ts

@@ -1,3 +1,7 @@
 import Vue from './index'
+
 export default Vue
 export * from '@vue/runtime-dom'
+
+const { configureCompat } = Vue
+export { configureCompat }

packages/vue-compat/src/esm-runtime.ts

@@ -1,3 +1,7 @@
 import Vue from './runtime'
+
 export default Vue
 export * from '@vue/runtime-dom'
+
+const { configureCompat } = Vue
+export { configureCompat }