TODO:

• scrolling chat history; (somewhat works out of box);
• log errors to file;
• give serial id to each msg in chat to track it;
• regen last message;
• delete last message
• edit message? (including from bot);
• use chatml template (but do not show it to the user);
• use mistral template;
• ability to copy message;
• aility to copy selected text;
• menu with old chats (chat files);