Timezone support

[martijnrusschen]

Fixes #1787

Changes included:

• Documentation: Updated docs/timezone.md (docs/timezone.md) with timezone prop documentation
• Example: Created docs-site/src/examples/ts/timezone.tsx (docs-site/src/examples/ts/timezone.tsx) showing timezone usage
• Tests: Added src/test/timezone_test.test.tsx (src/test/timezone_test.test.tsx)
• Dependencies: Added date-fns-tz as dev dependency for testing

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.25%. Comparing base (45ed908) to head (94457ed).
⚠️ Report is 20 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6068      +/-   ##
==========================================
+ Coverage   99.24%   99.25%   +0.01%     
==========================================
  Files          30       30              
  Lines        3706     3782      +76     
  Branches     1617     1627      +10     
==========================================
+ Hits         3678     3754      +76     
  Misses         27       27              
  Partials        1        1              

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[hariacharya80]

ok