Add isMultiDay extension property and improve test naming conventions

[kozw]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.30%. Comparing base (88ed1e5) to head (fd04c3c).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #13      +/-   ##
==========================================
+ Coverage   97.28%   97.30%   +0.02%     
==========================================
  Files          15       15              
  Lines        2137     2153      +16     
==========================================
+ Hits         2079     2095      +16     
  Misses         58       58              

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[Copilot]

Pull Request Overview

This PR adds multi-day detection functionality to calendar components, enabling determination of whether events and todos span multiple calendar days. The implementation includes a shared helper function with comprehensive test coverage for various scenarios.

• Adds isMultiDay getter to EventComponent and TodoComponent extensions
• Implements _isMultiDay helper function with logic for both all-day and timed components
• Adds 14 new test cases covering edge cases for events and todos (duration-based, time-based, all-day scenarios)

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
lib/src/semantic/extensions/components.dart	Adds _isMultiDay helper function and isMultiDay getters to EventComponent and TodoComponent extensions with comprehensive documentation
test/semantic/extensions/components_test.dart	Adds comprehensive test coverage for isMultiDay functionality across different event and todo scenarios; modifies test description capitalization for timezone tests

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