Supabase Auth JWT Refresh bug Fix for Flutter App

I am looking for an experienced developer to help fix a bug related to authentication and JWT Refresh on the Supabase platform. The problem is that a user's JWT expires every 1 hour, (can be extended to 1 week), therefore the user is logged out on their own when they get back on the platform.

The front-end of the app is written in Flutter, I am an experienced developer myself so I can help guide through the code.