Add proper logging

[Sudhindra]

Right now we are only printing errors with print statements. It will become hard to debug as the project grows in size. Everything in console looks blue 😢. It's hard to see where errors are printed

[Sudhindra]

Probably some logging library which prints different types of outputs with different colors. So that it's easy to see

[Ajitha Prasad Y]

https://pub.dev/packages/logger

This seems like a good enough. Your thought ?

[Sudhindra]

Ya that looks good. We can use it