Hey there, @Dharam_Pal 
Thank you so much for the feedback!
We already have a request for the Emoji and GIF buttons and I’ve merged your comment with it.
The request for the Voice Chat option is added sepearately, feel free to upvote it: Voice chat
Regarding the File upload button, it’s already available in the widget. Check this post for more details: AI Chatbot: Let your clients send attachments during the chat! 🚀