feat(plugins/unocss): decouple `unocss` plugin from netzo

[miguelrk]

Closes https://github.com/netzo/netzo/issues/114. See also https://github.com/netzo/netzo/issues/85#issuecomment-1925870041.

The components module is to be dropped in favor of a standalone unocss plugin to decouple it from netzo.

• updates to local unocss dependencies
• removes netzo-specific options property from UnocssOptions
• updates unocss to require explicit uno.config.ts file when csr mode enabled
• remove bundle:csr task workaround to instead load original uno.config.ts from client (now that it's required when csr mode enabled)
• removes netzo/plugins/components in favor of netzo/plugins/unocss and netzo preset
• update theme defaults to { color: "zinc", radius: 0.5 }
• updates templates accordingly
• adds fixtures-plugins-unocss

Before

The components module would setup an adapted unocss fresh plugin internally and handle theming.

// netzo.ts
import { Netzo } from "netzo/mod.ts";

export const netzo = await Netzo({
  components: {
    theme: { color: "red", radius: 1.0 }
  }
});
if (import.meta.main) netzo.start();

Now

The standalone unocss fresh plugin uses a conventional uno.config.ts file and presetNetzo handles theming. Note that note that NetzoConfig extends FreshConfig so we can directly pass a fresh plugins array.

// netzo.ts
import { Netzo } from "netzo/mod.ts";
import { unocss } from "netzo/plugins/unocss/plugin.ts";

export const netzo = await Netzo({
  plugins: [unocss()], // auto-loads uno.config.ts
});
if (import.meta.main) netzo.start();

// uno.config.ts
import { defineConfig } from "netzo/plugins/unocss/plugin.ts";
import { presetNetzo } from "netzo/plugins/unocss/preset-netzo.ts";

export default defineConfig({
  presets: [
    presetNetzo({ color: "red", radius: 1.0 }),
  ],
});