feat: timestamp getters for PostObjectInterface

[thorbrink]

This pull request includes several changes across multiple files, primarily focusing on adding and testing date handling functionality and enhancing post object decorators. The most important changes include the addition of a method to format dates to Unix timestamps, updates to post object decorators to include published and modified times, and corresponding tests for these functionalities.

Date Handling Enhancements:

• library/Controller/Archive.php: Added tryFormatDateToUnixTimestamp method to format dates to Unix timestamps and integrated it into the getDate method. [1] [2]
• library/Controller/Archive.test.php: Added tests for tryFormatDateToUnixTimestamp to ensure it correctly formats valid date strings and returns null for invalid date strings.

Post Object Decorators Enhancements:

• library/PostObject/Decorators/BackwardsCompatiblePostObject.php, library/PostObject/Decorators/IconResolvingPostObject.php, library/PostObject/Decorators/PostObjectFromOtherBlog.php, library/PostObject/Decorators/PostObjectFromWpPost.php, library/PostObject/Decorators/PostObjectWithSeoRedirect.php: Added getPublishedTime and getModifiedTime methods to various post object decorators. [1] [2] [3] [4] [5]

Post Object Interface and Implementation:

• library/PostObject/PostObject.php, library/PostObject/PostObjectInterface.php: Added getPublishedTime and getModifiedTime methods to the post object interface and its implementation. [1] [2]

Blade Template Updates:

• views/v3/partials/post/post-compressed.blade.php: Updated to use getPublishedTime and getModifiedTime methods for displaying post dates. [1] [2]

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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