Search. Match whole word flag is broken (at least in cyrillic)

[frankbakulov]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.106.2
• OS Version: Windows 11 Home Single Language 24H2 26100.7171

Steps to Reproduce:

1. Write "создание" in any file inside the project folder
2. Ctrl+Shift+F
3. Type "да"
4. Alt+w (match whole world flag)
5. You'll see the word from 1. although "да" isn't a whole word there.