Bug: Message appears as draft in chat sidebar even after sending in channel

**Summary**

When the sidebar is opened while creating a draft, the message will remain in the sidebar as a draft even after the message is sent in the main channel.

**Steps to reproduce:**

1. Draft a message in any chat channel.
2. Before sending the message, click the icon to open the channel in the sidebar. (Notice the draft message appears in the input field for both the main channel and the sidebar)
3. Send the message in the main channel. The draft message still remains in the input field in the sidebar.

**Expected Result**

When the message is sent in either the main channel or the sidebar, the input field should be emptied (main channel and sidebar should always match).

_{Huly®: UBERF-8594}