Stacked bar value labels are too close each other

[markov00]

Describe the issue
If a stacked bar chart is rendered with the value labels on, there could be cases where the value of two or more consecutive bars are too close together that they will look like a single number.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://codesandbox.io/s/relaxed-joliot-qtm2ly?file=/src/App.tsx

Expected behaviour
We should find a way to push back/pad/separate consecutive value labels to avoid creating the confusion illustrated in the screenshot below

Screenshots

[gvnmagni]

Little preliminary design note: given the unpredictable amount of space available for labels it is probably impossible (or at least extremely complicated) to find a simple way to deal with labels outside of bars, taking some space from the surrounding area of the bars to display numbers.

We should definitely investigate for the best solution possible, in the meanwhile, in order to avoid cases as the one described, I would suggest to display numbers only where there is enough space within the bar to do that with a decent amount of space for margins, otherwise readability would be compromised.