doc: add nextjs example

Author: kaoDev

example-nextjs/.eslintrc.json

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+{
+  "extends": "next/core-web-vitals"
+}

example-nextjs/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# local env files
+.env*.local
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

example-nextjs/README.md

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+This is a [Next.js](https://nextjs.org/) project bootstrapped with [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `pages/index.tsx`. The page auto-updates as you edit the file.
+
+[API routes](https://nextjs.org/docs/api-routes/introduction) can be accessed on [http://localhost:3000/api/hello](http://localhost:3000/api/hello). This endpoint can be edited in `pages/api/hello.ts`.
+
+The `pages/api` directory is mapped to `/api/*`. Files in this directory are treated as [API routes](https://nextjs.org/docs/api-routes/introduction) instead of React pages.
+
+## Learn More
+
+To learn more about Next.js, take a look at the following resources:
+
+- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
+- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+
+You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js/) - your feedback and contributions are welcome!
+
+## Deploy on Vercel
+
+The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/deployment) for more details.

example-nextjs/next.config.js

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+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  reactStrictMode: true,
+  swcMinify: true,
+}
+
+module.exports = nextConfig

example-nextjs/package.json

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+{
+  "name": "example-nextjs",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "next": "12.2.4",
+    "react": "link:../node_modules/react",
+    "react-dom": "link:../node_modules/react-dom",
+    "react-lazy-svg": "link:../"
+  },
+  "devDependencies": {
+    "@types/node": "18.6.3",
+    "@types/react": "18.0.15",
+    "@types/react-dom": "18.0.6",
+    "eslint": "8.21.0",
+    "eslint-config-next": "12.2.4",
+    "typescript": "4.7.4"
+  }
+}

example-nextjs/public/favicon.ico

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+import '../styles/globals.css';
+import type { AppProps } from 'next/app';
+import {
+  IconsCache,
+  initOnClient,
+  SpriteContextProvider,
+} from 'react-lazy-svg';
+
+const cache: IconsCache = new Map();
+const loadSVG = async (url: string) => {
+  return await (await fetch(url)).text();
+};
+
+if (typeof window !== 'undefined') {
+  initOnClient(cache);
+}
+
+function MyApp({ Component, pageProps }: AppProps) {
+  return (
+    <SpriteContextProvider embeddedSSR knownIcons={cache} loadSVG={loadSVG}>
+      <Component {...pageProps} />
+    </SpriteContextProvider>
+  );
+}
+
+export default MyApp;