Selection module in the conversations should be updated after a new thread is started

[malikpiara]

After selecting someone on the conversations search and starting a thread, the navigation module is not updated. Instead of keeping the selection mode, we should display the current conversations.

Steps to replicate

1. Go to conversations
2. Click on the new message button
3. Select one person with whom there's already a conversation.
4. Start a new topic with them.