fix: revert to the serve script name for previewing

1. it's the default in vite templates, users might be used to it already
2. `preview` starts with a `pre` string, making npm failing to recognize
and auto-run the `prepreview` script before it

Author: haoqunjiang

template/config/base/package.json

@@ -2,8 +2,8 @@
   "scripts": {
     "dev": "vite",
     "build": "vite build",
-    "prepreview": "vite build",
-    "preview": "vite preview --port 5050"
+    "preserve": "vite build",
+    "serve": "vite preview --port 5050"
   },
   "dependencies": {
     "vue": "^3.1.5"

template/config/cypress/package.json

@@ -2,8 +2,8 @@
   "scripts": {
     "test:unit": "cypress open-ct",
     "test:unit:ci": "cypress run-ct --quiet --reporter spec",
-    "test:e2e": "start-server-and-test preview 5050 'cypress open'",
-    "test:e2e:ci": "start-server-and-test preview 5050 'cypress run'"
+    "test:e2e": "start-server-and-test serve 5050 'cypress open'",
+    "test:e2e:ci": "start-server-and-test serve 5050 'cypress run'"
   },
   "devDependencies": {
     "@cypress/vite-dev-server": "^2.0.2",