Incorrect font for plain text in russian

Description

UI text elements in Russian displayed with plain text font are rendered in a font different from other strings in English and from bolt text. This affects both folder list and messages.

To Reproduce…

Steps to reproduce the behavior:

  1. Start Mailspring

  2. Switch interface language to Russian or send/recieve message in Russian

Expected Behavior

Font used for UI is the same regarding of language

Screenshots

  • folder Inbox is in English and is displayed properly,
  • other folders are in Russian and use different font,
  • first message in the list is in English and is displayed properly,
  • second message is unread and has topic in Russian - displayed properly,
  • last message is read and in Russian - uses different font.

Setup

OS and Version: Windows 11 25H2
Installation Method: Winget (downloading from Github)
Mailspring Version: 1.17.3

Additional Context

That behavior is happening only on one of my Windows PCs, others are working fine. I couldn`t find a difference in their setups, that would bring font to normal.
Probably would not be a problem if Choose plain text font is implemented.