Bug in components with properties at the beginning of a line

[ldonetti]

Describe the bug

I'm using Sli.dev and I observe a regression when markdown-it-mdc is upgraded from version 0.2.3 to 0.2.4 (see this issue). I started to get Internal server error: Invalid block params when using the MDC syntax for vue component with parameters.

For inline component I found out that the error is only triggered when the component is the first element on a line. For example:

 Inline :component{key="value" key2=value2}!

works, but not

:component{key="value" key2=value2}!

Similarly, block components with parameters also give an error.

Reproduction

PR #13

System Info

System:
    OS: Linux 6.8 Ubuntu 24.04.1 LTS 24.04.1 LTS (Noble Numbat)
    CPU: (8) x64 Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz
    Memory: 10.07 GB / 15.29 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 18.19.1 - /usr/bin/node
    npm: 9.2.0 - /usr/bin/npm
  Browsers:
    Chrome: 128.0.6613.119

Used Package Manager

npm

Validations

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• [X] Read the Contributing Guide.
• [X] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
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• [X] The provided reproduction is a minimal reproducible of the bug.

Contributions

• [ ] I am willing to submit a PR to fix this issue
• [X] I am willing to submit a PR with failing tests (actually just go ahead and do it, thanks!)