Group dice rolls entries by time

[Cwpute]

Sometimes you roll several dice together because a character throws several attacks, or because of several skill checks etc… and i'd like these dice rolls to be grouped together in the past-entries list in order to spot them more easily. It would help differentiate the different moments at which you used the app for rolling different sets of dice.

My solution to that problem would be to create an empty entry in that list if there has not been any dice rolled in the last 10~15 seconds, and if the previous entry isn't already an empty entry. It would effectively create a visual separation between different moments of dice rolling action. To account for games in which dice rolls can happen at different intervals, being able to manually set up the time at which it creates that new empty entry would be welcome !

It would also partially solve my problem in #6