Custom days of the week labels

[mmakarios]

Is there a way to change the days of the week labels displayed in the datepicker?

For example, using the pt locale, I get "2, 3, 4, 5, 6, S, D", as seen in the image:

I would like to change these labels to something more familiar to the Brazilian locale, something like "S, T, Q, Q, S, S, D".

I'm already using a custom set of formats and injecting them to the MAT_DATE_FORMATS, but I can't find the configurarion that changes this, if there is any.

Thanks for the plugin!