Set IM tab to legacy name instead of display name if display name is empty. Fixes FIRE-704.
Set IM tab to legacy name instead of display name if display name is empty. Fixes FIRE-704.

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm