feat(module): add support for vue using unplugin (#2416)

Co-authored-by: Benjamin Canac <canacb1@gmail.com>

build.config.ts

@@ -1,6 +1,13 @@
 import { defineBuildConfig } from 'unbuild'
 
 export default defineBuildConfig({
+  entries: [
+    './src/unplugin',
+    './src/vite'
+  ],
+  rollup: {
+    emitCJS: true
+  },
   replace: {
     'process.env.DEV': 'false'
   },
@@ -8,5 +15,6 @@ export default defineBuildConfig({
     'mkdist:entry:options'(ctx, entry, options) {
       options.addRelativeDeclarationExtensions = false
     }
-  }
+  },
+  externals: ['#build/ui', 'vite']
 })