When I have many labels it becomes unconfortable to edit them

[virgile-dev]

First it'd be great to have way to order labels alphabetically so I have a way of finding them easily. (Having a few ordering option would be great.

While editing a label is straightforward as you can just edit the text and save, when you edit quite a few it can lead to a few complication such as :

• forgetting to save
• deleting a label or pressing enter after finishing changing a label text which sends you at the bottom of the list and lose where you were in the list
• finally randomizing color selection of the text and background (in a way that leaves it readable) would be awesome as when I'm labelling I sometimes do not care about the color for each value but it's great way to distinguish them