fix(examples/with-unocss): prevent hydration mismatch by using vite-plugin-solid SSR config

[KunMoe]

PR Checklist

Please check if your PR fulfills the following requirements:

• Addresses an existing open issue: [Bug?]: [examples/with-unocss] Hydration mismatch caused by Tailwind reset import during SSR #1980
• Tests for the changes have been added (for bug fixes / features)
• Example runs without errors or hydration mismatches
• Code follows the project’s style and contribution guidelines

What is the current behavior?

The with-unocss example imports @unocss/reset/tailwind.css directly in app.tsx.
Since SolidStart is SSR-first, this causes hydration mismatches and a visible layout/style shift on load.

What is the new behavior?

Configure UnoCSS via vite-plugin-solid with SSR enabled

• Enable presetWind4 extension for Tailwind-compatible utilities
• Removed manual reset import from app.tsx
• This ensures the generated CSS is consistent between server and client, avoiding hydration mismatches and style shifts.

Main changes

Updated app.config.ts:

import { defineConfig } from "@solidjs/start/config";
import solidPlugin from "vite-plugin-solid";
import UnoCSS from "unocss/vite";
import presetWind4 from "@unocss/preset-wind4";

export default defineConfig({
  vite: {
    plugins: [
      UnoCSS({
        presets: [presetWind4()]
      }),
      solidPlugin({
        ssr: true,
      })
    ]
  }
});

Removed import "@unocss/reset/tailwind.css"; from app.tsx
Verified hydration consistency, no style jumps

Other information

• Tested locally using pnpm dev in examples/with-unocss
• No hydration problems
• No visible layout shift
• Aligns the UnoCSS integration with UnoCSS Vite SSR best practices

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