Remove dayjs dependency

[patinthehat]

This PR removes the dayjs dependency, and uses either native javascript Date formatting or a new formatDateExtended() utility function that formats dates using the dayjs format strings.

[what-the-diff]

PR Summary

• Improvement in Date Formatting and Handling
  The DatePayload.ts file has had several adjustments for better date handling. We've started using formatDateExtended for everything from formatting dates to working with time zones. This makes our code more centered around this function for all date related operations, simplifying our approach.

• Optimization in Cache Data Processing
  In the CacheStore.ts, there's been an update to the countLastSecond method. It now uses the subSeconds method for subtractive calculations, which allows for a more precise and accurate way to process the cached data.

• Enhancements in Immutable Date Handling
  The DateImmutable.ts file has been refined for efficient date management. The _date property type has been switched to undefined, aided by a new getter and setter set up for the date property. This enhances our control over this property. Plus, the modify method has been replaced with the addSeconds method, introducing the new subSeconds method. This gives us more specific control over date manipulation.

• Expansion of Utility Functions and Tests
  The newly added formatDateExtended function in utils.ts expands our utility function library. To validate these changes, a series of tests have been added for the countLastSecond method, addSeconds and subSeconds methods, and the formatDateExtended function. This ensures the newly introduced functionalities are working as desired.

[codecov]

Codecov Report

Attention: Patch coverage is 86.84211% with 15 lines in your changes are missing coverage. Please review.

Project coverage is 87.06%. Comparing base (19e0453) to head (ff8585c).

❗ Current head ff8585c differs from pull request most recent head 8143ba0. Consider uploading reports for the commit 8143ba0 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #270      +/-   ##
==========================================
- Coverage   87.22%   87.06%   -0.15%     
==========================================
  Files          67       67              
  Lines        3418     3492      +74     
  Branches      528      547      +19     
==========================================
+ Hits         2981     3040      +59     
- Misses        437      452      +15     

Files	Coverage Δ
src/Payloads/DatePayload.ts	100.00% <100.00%> (ø)
src/Support/CacheStore.ts	100.00% <100.00%> (ø)
src/Support/DateImmutable.ts	100.00% <100.00%> (ø)
src/lib/utils.ts	91.87% <84.05%> (-2.93%)	⬇️

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