Introduce a pretty generator

[arthurfiorette]

Having the option to quick switch between production(minified, default) and pretty(easy for debug) would be an awesome feature, since, for now you have to install another package for it.

Tasklist:

• Include tests for the prettifier
• Fixed pretty.d.ts file to correct export types
• Change documentation to on how changing import html from '@kitajs/html' to import html from '@kitajs/html/pretty' makes the entire file generate prettified html.
• Improve formatter (?) Maybe we should just keep things simple to only help debugging and hardcode default options to avoid this having infinite issues about custom formatting options we should add.
• Include benchmark results for this feature (And probably warn users that this will be slower than the normal one, but compiled results should be the same)

I'm not needing this feature for now, thus I will not give it any priority, this is why I opened this PR. If you want to work on this, just give me a heads up!

[arthurfiorette]

I'll be closing this PR as there's no real reason for it... If someone actually needs it, there's already a section on our documentation about it.

[hbendev]

Hey! Thanks for the lib!

For anyone looking to format the output of @kitajs/html when using Storybook - because it actually makes sense there -, here's what to do in your preview.ts/js file:

/** @type { import('@storybook/html').Preview } */
export const preview = {
  parameters: {
    // ...
    docs: {
      source: {
        format: "html"
      },
    },
    // ...
  },
};

export default preview;

Assuming you're on Storybook version 7. Related docs: https://storybook.js.org/docs/api/doc-block-source#format