Opens a new tab for a new direct message
(To be called by a handler, which auto-mutexes)
1. Will add a new area 2. Will add a new tab to the notebook switcher 3. Will switch the current tab to said tab
See Implementation
Opens a new tab for a new direct message
(To be called by a handler, which auto-mutexes)
1. Will add a new area 2. Will add a new tab to the notebook switcher 3. Will switch the current tab to said tab