Wrong display of hyperlinks when an underscore is present in the text

Description:

The display of hyperlinks containing an underscore in the text and in the url is not correct in particular cases.

Steps to reproduce:

In any channel, type the following texts:

[testwithatextcontainingan_here](http://example.com?a_param)

✅ Good display

[test-with-a-text-containing-an_here](http://example.com)

✅ Good display

[test-with-a-text-containing-an_here](http://example.com?param=my_value)

❎ Wrong display

In tried to escape the underscores but this do not improve the display.

Expected behavior:

Correct display of an hyperlink, showing only the text with the underscore.

Actual behavior:

Server Setup Information:

• Version of Rocket.Chat Server: 8.7.0
• License Type: starter
• Operating System:
• Deployment Method: docker
• Number of Running Instances: 1
• DB Replicaset Oplog: N/A
• NodeJS Version: v22.22.3
• MongoDB Version: 8.0.23 / wiredTiger

Client Setup Information

• Desktop App or Browser Version: 4.15.3
• Operating System: Ubuntu 24.04.4

Start by reproducing the three Markdown hyperlink examples in any channel and trace the client-side hyperlink rendering path. Add a regression test covering underscores in both link text and a query parameter, then verify the rendered link shows only the intended text without formatting artifacts.