fix: add ability to use partytown with scripts with relative paths

[azat-io]

What is it?

• Feature / enhancement
• Bug
• Docs / tests

Description

Hi. Thanks for your cool project!

I am currently having a problem when using the script on sites with relative paths. The site I'm working on is published on different domains and has different paths.

For this reason I currently have to use a hack in my Rspack config:

partytownSnippet: partytownSnippet({
  lib: './',
}).replace('"/"', '"."'),

The current PR adds the ability to use it with relative paths.

Checklist:

• My code follows the developer guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• Added new tests to cover the fix / functionality

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Name	Status	Preview	Comments	Updated (UTC)
partytown	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 8, 2024 8:25pm

[gioboa]

Thanks @azat-io for your commitment
Can you update the docs as well https://partytown.builder.io/configuration ?