apply sentence case in jupyter notebook markdown cells

I have been searching for solutions to a simple question for long time but have not got any useful information.

My question is straightforward: is there a function to automatically change texts in jupyter notebook markdown cells to sentence case? Specifically, automatically change the first letter to the upper case after a period/question mark/exclamation mark, etc, also capitalize the letter "I" from "i" automatically.

I think there are many people who rely on jupyter notebook for their work. Without such function, people have to constantly turn on and off the caps lock on the keyboard which adds a lot of extra work and also causes distractions.

No implementation files, tests, or entry points are named. Start by locating the markdown-cell editing path in Jupyter Notebook and check how text input and formatting are handled. Done should mean a defined, tested behavior for sentence casing after punctuation and capitalization of the pronoun "I".

Written by the indexing model from the issue text.