feat(transformer): support custom aliases

[Gomah]

Description

Add support for passing custom aliases in the custom TV Transformer.

Additional context

Currently, the transformer checks the files's content against the "tailwind-variants" constant to check whether or not the file should be transformed.

However, when creating a custom TV instance and importing it, the transformer will ignore it as it's not matching "tailwind-variants".

// @/lib/tv.ts
import { createTV } from 'tailwind-variants';
export type { VariantProps } from 'tailwind-variants';

export const tv = createTV({
  // my custom twMergeConfig.
});

The proposed change adds a configuration object to the withTV function to configure aliases:

// tailwind.config.js

const { withTV } = require('tailwind-variants/transformer')

/** @type {import('tailwindcss').Config} */
module.exports = withTV({
  content:  ["./index.html", "./src/**/*.{js,ts,jsx,tsx}"],
  theme: {
    extend: {},
  },
  plugins: [],
}, {
  aliases: ["@/lib/tv"]
})

---

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Follow the Style Guide.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).

[mykz]

Our team encountered this issue a while back, and we ended up naming our custom TV instance file tailwind-variants.ts. However, we did waste some time trying to debug the issue until delving into the TV transformer source code and finding the condition.

I was hoping to submit a PR, but time has slipped away, so I appreciate the effort put into this as it's a much-needed option within the transform.