bug: messages with markdown content make channel preview grow

[MartinCupela]

Describe the bug

Channel preview parses message text as markdown. This leads to rendering multi-line text in some cases and thus increases the height of the preview.

To Reproduce

Steps to reproduce the behavior:

Message in message list	Message in channel preview

Expected behavior

1. Render only the first line of the message
2. Longer lines are shortened with ellipsis

Package version

• stream-chat-react: 10.1.1
• stream-chat-css: 3.1.1