Password validation does not recognize non-Latin upper/lower case

[qoqobolo]

Bug Report

Followup of #15405 for discussion with the design team

Problem

If you use a non-Latin alphabet, the validation doesn't recognize uppercase and lowercase letters, so any characters other than the Latin alphabet are recognized as special symbols (for example with Cyrillic on the screenshot). Thus, if you want a strong password, you need to use letters from the Latin keyboard.

So we need to decide how crucial this case is and whether it needs to be fixed, as @cammellos pointed out, in some languages, there is no upper case option, so it may not make sense to put effort into this fix.

Expected behavior

Upper-case letters of any alphabet are recognized by validation

Actual behavior

Validation recognizes only upper-case letters of the Latin alphabet

Reproduction

1. Enter the password in a non-Latin language that has the upper-case option (for example, Cyrillic)
2. Check the tips

Additional Information

• Status version: [#15024] Profile password screen #15405
• Operating System: Android, iOS