Make example app interactive

[YoavCodes]

The example app should be interactive with a sidebar that lets users explore all the Electrobun features and then jump into the code to see how it works. It would also function as a smoketest/QA tool when iterating on new features

[mattgi]

It'd be great to showcase the dev experience more too. For example, using the following script example:

  "scripts": {
    "build:dev": "electrobun build",
    "start:dev": "electrobun dev",
    "dev": "bun install && npm run build:dev && npm run start:dev",
    "build:canary": "electrobun build env=canary",
    "build:stable": "electrobun build env=stable"
  }

I was hoping that by running bun dev it would "Facilitate the project running in a development environment with live reloading, providing real-time feedback during development phases.". However I believe i still had to restart after making a change to src/bun/index.ts (e.g. changing from google.com to bing.com in the hello world example).

[mattgi]

Also an example that uses a framework like Solid or React would be awesome, including Tailwind - curious if vite needs to be running in some manner.