chore: migrate from presetUno to presetWind3 (#348)

Author: micaiguai

unocss.config.ts

@@ -1,8 +1,13 @@
 import transformerDirective from '@unocss/transformer-directives'
-import { defineConfig, presetAttributify, presetIcons, presetUno } from 'unocss'
+import {
+  defineConfig,
+  presetAttributify,
+  presetIcons,
+  presetWind3,
+} from 'unocss'
 
 export default defineConfig({
-  presets: [presetUno(), presetAttributify(), presetIcons()],
+  presets: [presetWind3(), presetAttributify(), presetIcons()],
   transformers: [transformerDirective()],
   shortcuts: {
     'color-primary': 'color-[var(--el-color-primary)]',