[Refactor] Adopt shorthand enum syntax across the app

[vishaltsolguruz]

Pull Request

Description

• Enabled Dart dot shorthand across the app and updated related text style, alignment, and sizing usage. This makes the code shorter, cleaner, and easier to scan without changing UI behavior.

Type of Change

• Bug fix
• New feature
• Code refactoring
• Test cases
• Documentation update
• UI/UX improvement
• Performance improvement
• Build configuration change
• Other (please describe):

Screenshots (if applicable)

Checklist

• Before requesting for review, I have self reviewed all the changes in this PR
• My code follows the project's coding style guidelines
• I have added any necessary tests
• New and existing tests pass locally with my changes
• Github pipeline passes with my changes

Additional Notes