Previously, not all repo tabs had shown the RSS icon in the repo header because the context data was not being set. Added this context data in a new function. Before: <img width="806" alt="image" src="https://user-images.githubusercontent.com/115237/229639615-9cc00e75-3a26-4ff4-a6f2-316c1fccc596.png"> After: <img width="815" alt="Screenshot 2023-04-04 at 00 16 17" src="https://user-images.githubusercontent.com/115237/229639201-2e1c015b-1f13-46d4-aa14-e7a82fab3982.png"> --------- Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>