docs(guide): update intro page

docs/src/.vitepress/config.mts

@@ -106,6 +106,7 @@ export default defineConfigWithTheme<DefaultTheme.Config>({
       }),
       Icons({
         compiler: 'vue3',
+        defaultClass: 'inline-block align-middle'
       }),
     ],
   },

docs/src/.vitepress/windi.config.ts

@@ -21,10 +21,6 @@ export default defineConfig({
     scrollbar,
   ],
 
-  shortcuts: {
-    'primary-gradient': 'bg-gradient-to-b from-accent-500 via-accent-700 to-accent-900',
-  },
-
   theme: {
     extend: {
       colors: {