Cognita Study App Devlog 10 - Fix AI Chat store logic

While debugging and testing features, I realized that there was a Firestore error while trying to store the values of the AI chat. It was due to an undefined title if the user doesn’t make a title for the AI chat. To fix this, I made an autogenerated title (just like how other leading AI chats do) that makes Firestore “happy”. With that fixed, I continued to work and move onto a few other errors including friendship check logic.