Fix keyboard shortcuts conflict between bible reader and AI chat

- Added data-floating-chat attribute to chat component for easy detection
- Updated bible reader keyboard event handler to check if chat is open
- Prevent shortcuts from triggering when user is typing in input fields
- Check for dialogs, modals, and the floating chat before processing shortcuts

components/chat/floating-chat.tsx

@@ -192,6 +192,7 @@ export default function FloatingChat() {
       <Slide direction="up" in={isOpen} unmountOnExit>
         <Paper
           elevation={8}
+          data-floating-chat="true"
           sx={{
             position: 'fixed',
             bottom: 0,