Fix CI pipeline

[tanmoysrt]

Fixes -

• many textstyle has been deprecated after v3.1.0-0.0.pre
• flutter format has been deprecated

Describe the changes you have made in this PR -

• In codebase deprecated TextStyle has been updated as per this docs : https://api.flutter.dev/flutter/material/TextTheme-class.html
• in ci.yml flutter format has been updated with dart format

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

[tanmoysrt]

@aman-singh7 @manjotsidhu can you take a look to this . The CI pipeline is broken. The CI is failing at flutter pub get for windows-latest.

[manjotsidhu]

@Tanmoy741127 Can you add a step to run git config core.longpaths true before flutter pub get ? This should resolve windows build error

[tanmoysrt]

@manjotsidhu i have not changed the setps actually. Will try to add that specific line. Thanks

[tanmoysrt]

@manjotsidhu can you run the workflow once of this PR. Last time ot was going fine for ubuntu and windows. mac needs some more time, so increased timeout by 5 minute

[coveralls]

Pull Request Test Coverage Report for Build 4315532358

• 72 of 90 (80.0%) changed or added relevant lines in 36 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.0%) to 64.63%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
lib/ui/views/about/about_privacy_policy_view.dart	2	3	66.67%
lib/ui/views/groups/add_assignment_view.dart	1	2	50.0%
lib/ui/views/groups/assignment_details_view.dart	8	9	88.89%
lib/ui/views/groups/my_groups_view.dart	0	1	0.0%
lib/ui/views/groups/update_assignment_view.dart	1	2	50.0%
lib/ui/components/cv_drawer.dart	0	2	0.0%
lib/ui/views/ib/components/ib_pop_quiz.dart	0	2	0.0%
lib/ui/views/ib/components/ib_pop_quiz_button.dart	0	2	0.0%
lib/ui/views/ib/ib_page_view.dart	5	7	71.43%
lib/ui/views/projects/project_details_view.dart	4	9	44.44%
<!--	Total:	72	90	80.0%	-->

Totals
Change from base Build 3668186862:	-0.0%
Covered Lines:	4040
Relevant Lines:	6251

---

💛 - Coveralls

[tanmoysrt]

@manjotsidhu @tachyons now ig it's ready to be merged . As , the deprecation warning and CI has been resolved.