Bing ChatGPT interface issue: Chat window opening in sidebar instead of full screen mode

Hello friends,

Till yesterday if I was clicking on Bing chat logo it was taking me to a full screen chat i.e., in a new tab, but today it is just opening in the right side of browser (at sidebar as seen in screenshot). And I feel that it is not proper space for conversation/chat, I want to chat in full screen mode instead of this sidebar so please help me and provide any solution to me so that I can run Bing ChatGPT in full screen mode (in a separate tab). 

Thankyou