Expiration date calendar is wrong about language and days

[jza34]

Bug report

When setting an expiration date the calendar do not honor language preference.

Also date and day are not correct

Steps to reproduce

1. Set a language different to English, like French
2. Set an expiration date to your password
3. Check that the February 25rd is Friday and not Thursday

Expected behavior

Day should be in French February 25rd should be Thursday

Actual behavior

Day are in english February 25rd is Friday

Configuration

Operating system: Manjaro / Windows 10

Browser: Firefox 85

Passman version: 2.3.6

Operating system: Centos 7

Web server: nginx

Database: Mariadb

PHP version: 7.3 fpm

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