FIX: Slash command responses are posted to the main channel instead of the thread in EmbeddedChat

[Pratheek555]

Description:

When executing a slash (/) command inside a thread in EmbeddedChat, the server response is incorrectly sent to the main room chat instead of the active thread.

Steps to reproduce:

1. Go to Embedded chat
2. Type any message
3. Make it a thread
4. Use any "/" command in the threads, the message will be send to the main chat rather than being sent in the respective thread.

Expected behavior:

The / command response from the RocketChat server should be rendered in that particular thread only.

Actual behavior:

The / command response is being sent to the main chat room instead of being rendered in that respective thread.

threadSlashIssue.mp4