Desktop:
1. You can leave a Conversation at any time, go to the Conversation.
2. Click on the 
Settings Icon on the top right corner.
3. And Select Leave Conversation.
Mobile:
1. You can leave a Conversation at any time, go to the Conversation.
2. Tap on 
people icon under the Conversation Name or the Settings icon on the top right.
3. And Tap Leave Conversation.
