deps: bump vite + update alias usage

Author: yyx990803

package.json

@@ -88,7 +88,7 @@
     "prismjs": "^1.23.0",
     "sirv": "^1.0.11",
     "slash": "^3.0.0",
-    "vite": "^2.0.0-beta.67",
+    "vite": "^2.0.0-beta.70",
     "vue": "^3.0.5"
   },
   "devDependencies": {

src/node/plugin.ts

@@ -42,7 +42,9 @@ export function createVitePressPlugin(
 
     config() {
       return {
-        alias,
+        resolve: {
+          alias
+        },
         define: {
           __CARBON__: !!site.themeConfig.carbonAds?.carbon,
           __BSA__: !!site.themeConfig.carbonAds?.custom,