Code in this project is not null safe

[j-vasil]

This project should be updated to eliminate the null safety warning that occurs at startup:

C:...Git\friendlyeats-flutter2>flutter run -d chrome --web-renderer html
Launching lib\main.dart on Chrome in debug mode...
Waiting for connection from debug service on Chrome... 31.1s
Debug service listening on ws://127.0.0.1:57882/LNbNgnoYfAQ=/ws

Running with unsound null safety
For more information see https://dart.dev/null-safety/unsound-null-safety

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COMMIT ID of code: 6f7603c