fix: Markdown breaking issue between hyperlinks

[Giridharan002]

Proposed changes (including videos or screenshots)

This pull request addresses an issue where typing between two hyperlinks in Rocket.Chat causes the markdown to break. This happens even without a space or other separator between the hyperlinks and the inserted text.
properly converts:
[Rocket.Chat] [New release](https://www.rocket.chat/blog/new-starter-pro-plans) to html like this <p>[Rocket.Chat] <a href="https://www.rocket.chat/blog/new-starter-pro-plans">New release</a></p>

Issues

closes the issue:
RocketChat/Rocket.Chat#31766
RocketChat/Rocket.Chat#31418

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Latest commit: 4bfc923

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[Giridharan002]

@dougfabris, could you please take a moment to review the PR when you're available, Thank you!

[Giridharan002]

@MartinSchoeler could you please review the PR if you have some time, thanks

[marceloschmidt]

@Giridharan002 I apologize for the lack of contact here.
I was looking at your pull request and wondered why did you create an unnest function, import it, then not use it?