feat: added flutter-lints package

[Neha62-lit]

Fixes #136

Describe the changes you have made in this PR -

1. Added all proper linter rules.
2. Migrated flutter-lints package.

Screenshots of the changes (If any) -

This screenshot shows that "No issues found" i.e there is no warnings/errors in the code.

[Neha62-lit]

Hey @manjotsidhu, Please review and merge PR.

[manjotsidhu]

Good work 👍

[manjotsidhu]

@Neha62-lit could you make a new Issue with the checklist of all the issues that are disabled ? It would be easy for us to track later. I will merge this PR once the CI checks are successful.

[Neha62-lit]

@Neha62-lit could you make a new Issue with the checklist of all the issues that are disabled ? It would be easy for us to track later. I will merge this PR once the CI checks are successful.

Can you explain me, What I have to do here?

[coveralls]

Pull Request Test Coverage Report for Build 1306847144

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 73.718%

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Totals
Change from base Build 1304734142:	0.0%
Covered Lines:	3924
Relevant Lines:	5323

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💛 - Coveralls

[manjotsidhu]

@Neha62-lit could you make a new Issue with the checklist of all the issues that are disabled ? It would be easy for us to track later. I will merge this PR once the CI checks are successful.

Can you explain me, What I have to do here?

You have to create a new issue for fixing flutter_lints rules and in that issue we can manage the checklist of the rules which are to fixed.

[Neha62-lit]

@Neha62-lit could you make a new Issue with the checklist of all the issues that are disabled ? It would be easy for us to track later. I will merge this PR once the CI checks are successful.

Can you explain me, What I have to do here?

You have to create a new issue for fixing flutter_lints rules and in that issue we can manage the checklist of the rules which are to fixed.

Okay, will do that.