Is your feature request related to a problem? Please describe.
Today we do some custom formatting for our labels in our charts. These look good for US users because a US person wrote the code that creates them.

Describe the solution you'd like
We should add some locale-aware logic to the generation of these label formatters. This will require some investigation because it's likely Kibana already provides this somewhere.

Describe alternatives you've considered
N/A

Additional context