Add support for French, German, and Russian languages in both VOSK and Whisper engines. - Adds language configuration to config system - Adds --language command-line argument - Creates vosk_model_info.py utility for model mapping - Supports en-us, fr, de, ru languages - Merged with latest main including PR #70 (Debian 13+ appindicator fix) Co-Authored-by: Artem Lytvynov <violog@users.noreply.github.com>