[Feature Request] Comprehensive Cyrillic Character Support (UTF-8) for MeshOS LilyGO T-Deck

[lotohov]

critically lacks adequate font support for the Cyrillic Unicode block (
U+0400
–$\text{U+045F}$).

This limitation renders both devices unusable as standalone communication terminals for users in regions utilizing Cyrillic scripts. When messages are received in languages like Bulgarian, Russian, Ukrainian, Serbian, etc., the display renders unreadable replacement characters (e.g., ? or □).

For Meshcore to achieve reliable utility and adoption across Eastern Europe and Central Asia, supporting this character set is a functional necessity.

[lotohov]

i see we have same issue on older firmware to #1229