CSS map (cssSourceMapping) not working correctly

# Bug Report

## Prerequisites

* [ ] Can you reproduce the problem on TYPO3 v11.5 LTS
* [x] Can you reproduce the problem on TYPO3 v12.4 LTS
* [x] Did you [perform a cursory search](https://github.com/issues?q=is%3Aissue+user%3Abenjaminkott+repo%3Abenjaminkott%2Fbootstrap_package) to see if your bug or enhancement is already reported?

## Description

Two things about the CSS source map:

1. It's not working correctly, it's showing wrong source files, e.g. for breadcrumb:

2. Description is wrong: https://github.com/benjaminkott/bootstrap_package/blob/master/Configuration/TypoScript/constants.typoscript#L317
The CSS compression will NOT be disabled, but you have to disable it yourself in TS constants:

```
config.compressCss = 0
config.concatenateCss = 0
```

Start with Configuration/TypoScript/constants.typoscript around line 317 and reproduce the CSS source-map behavior on TYPO3 v12.4. Check the breadcrumb mapping and the description of CSS compression settings; done means the mapped source files are correct and the documentation accurately states the required config.compressCss and config.concatenateCss settings.

Written by the indexing model from the issue text.