Messages should be grouped by tranches of more than 1 minute in conversations
When sending messages, the message time line will be shown for every first message of a given minute.
--- THU 10:00PM --- received1 sent1 sent2 --- THU 10:01PM --- received2 sent3 --- THU 10:02PM --- sent4 received3
This makes conversations unnecessarily spaced out and heavy. Instead of every minute, messages could be grouped by tranches of 15 minutes (exemple). However, it would be important for the user to have a way to know at what time a was sent, thus we could have a single tap on a message show the time at which it was sent (or other user-friendly way to show it on demand).