Bug : UIKit contextual bars not rendering in EmbeddedChat

[not-meet]

Description:

UIKit contextual bars fail to open when triggered by slash commands in EmbeddedChat. The command executes without errors but the contextual bar UI never appears, making Apps that rely on this feature completely unusable.

Steps to reproduce:

1. Install a Rocket.Chat apps that uses contextual bars (e.g., Apps.QuickReplies)
2. Open EmbeddedChat
3. Execute a slash command that should open a contextual bar (e.g., /quick list)
4. Expected: Contextual bar opens in the sidebar
5. Actual: Nothing happens - fails silently with no error messages

Expected behavior:

When a slash command triggers a UIKit contextual bar:

• The sidebar should open
• The contextual bar UI should render properly
• Users should be able to interact with the UI elements

Actual behavior:

• Command appears to execute (no error shown)
• Sidebar remains closed
• Contextual bar never renders

Screencast.from.2026-02-19.03-14-14.webm

[not-meet]

Heyy @Spiral-Memory
I’ve raised a PR addressing the contextual bar issue in embedded chat (linked to this issue). Since it affects slash commands relying on the contextual UI (RC Apps), I believe it’s a significant issue worth reviewing.

Would appreciate your review when you get a chance.