Fix and enable linter rules

[Neha62-lit]

Is your feature request related to a problem? Please describe.

Yes, In flutter-lints dependency, there are so many linter rules that I disabled in PR #148

Now here are the checklists of the lint rules that are disabled (enabled rules are marked as checked) :

• [x] always_declare_return_types
• [x] avoid_print
• [x] avoid_unnecessary_containers
• [x] prefer_if_elements_to_conditional_expressions
• [x] prefer_const_constructors
• [x] prefer_const_declarations
• [x] unnecessary_string_interpolations
• [x] sized_box_for_whitespace
• [x] prefer_single_quotes
• [x] prefer_const_constructors_in_immutables
• [x] use_key_in_widget_constructors
• [x] prefer_function_declarations_over_variables
• [x] unnecessary_string_escapes
• [x] avoid_function_literals_in_foreach_calls
• [x] prefer_interpolation_to_compose_strings
• [x] unnecessary_parenthesis
• [x] sort_constructors_first
• [x] always_put_required_named_parameters_first
• [ ] avoid_classes_with_only_static_members
• [x] avoid_redundant_argument_values
• [x] join_return_with_assignment
• [ ] non_constant_identifier_names
• [x] constant_identifier_names
• [ ] no_leading_underscores_for_local_identifiers
• [ ] library_private_types_in_public_api
• [ ] depend_on_referenced_packages
• [ ] use_build_context_synchronously This rule will be intentionally be disabled since we use ALL_CAPS_WITH_UNDERSCORES for constants.

[Neha62-lit]

Hey @manjotsidhu, Now I have to create a single PR of one rule at a time, right?

[manjotsidhu]

Hey @manjotsidhu, Now I have to create a single PR of one rule at a time, right?

Yes

[aman-singh7]

@manjotsidhu can I work on the remaining ones?

[Aadeesh11]

@manjotsidhu can i work on some of the remaining one?

[devansh12b2]

@manjotsidhu can I work on some of the remaining.

[remote007]

@ItsAdityaKSingh is this still open to MR ?

[ItsAdityaKSingh]

@remote007 I have made a PR for it which hasn't been reviewed yet.