<li data-email="{{this.email}}" class="typing_notification">{{#tr this}}__full_name__ is typing...{{/tr}}</li>

<li data-email="{{this.email}}" class="typing_notification">{{#tr this}}__full_name__ is typing…{{/tr}}</li>

Use unicode … instead of 3-dots.
typing_indicators: Use unicode … instead of 3-dots.

This looks nicer for __username__ is typing... typing indicator.
