feat: added day/month/year format

[Samiksha-Garg]

Calendar now supports Day/Moth/Year Date Format.

fixes #2156

[annieappflowy]

Great job! Thanks @Samiksha-Garg for helping out ❤️

[a-wallen]

Flutter-CI was failing because we checked in analyzer errors #2203.
integration test was failing after Flutter 3.7.5 dropped OpenGL support, we switched over to Linux #2212.

I rebased your PR on those changes to see whether the tests will pass now.

[Samiksha-Garg]

Hey @a-wallen, in my last to last commit, all checks were passing except Rust-CI, which was failing due to new date format not being covered in the tests. In my latest commit, I altered the tests and although now Rust-CI is passing, 2 other checks are failing, for the tests that are not even part of this PR. What to do?

[a-wallen]

I've observed that Flutter-CI / build (macos-latest) has some flakiness. It's something that I'm going to address in this upcoming quarter. If you feel there are failing tests unrelated to your change, you should re-run the test.

I've also observed similar behavior with integration test since switching to Linux machines. More specifically pumpAndSettle timed out. This test fails inconsistently across workflows, so I think it's flaky.

Either way, just re-run the tests again. This PR LGTM.

[a-wallen]

Besides the existing tests, this PR still needs tests to test the functionality that you're adding.