Added Null Support and Latest Flutter version

[afjal1]

Fixes #

Added Null Support and Ugraded All packages and Flutter SDK to Latest

Screenshots of the changes (If any) -

Note: Please check Allow edits from maintainers. if you would like us to assist in the PR.

[Akshatji800]

Hey @afjal1 can you please check why the CI is failing

[afjal1]

Hey @afjal1 can you please check why the CI is failing

It is showing

The current Dart SDK version is 2.18.5.

Because beacon requires SDK version >=3.1.2 <4.0.0, version solving failed.

[Akshatji800]

Hey @afjal1 can you please check why the CI is failing

It is showing

The current Dart SDK version is 2.18.5.

Because beacon requires SDK version >=3.1.2 <4.0.0, version solving failed.

Hmm can you please pull the changes from #211 can merge with your changes and check if everything works fine.

[afjal1]

Hey @afjal1 can you please check why the CI is failing

It is showing The current Dart SDK version is 2.18.5. Because beacon requires SDK version >=3.1.2 <4.0.0, version solving failed.

Hmm can you please pull the changes from #211 can merge with your changes and check if everything works fine.

Ok Sure

[afjal1]

Yes I Merged Changes From #211 into mine