fix(client): Support browsers without Array.prototype.at

[isnifer]

The author should do the following, if applicable

• Add tests
• Run tests
• bun run format:fix && bun run lint:fix to format the code
• Add TSDoc/JSDoc to document the code

Today I launched my project and found that people with old devices do not have Array.prototype.at in their browsers.
I don't use this method at all and hono/client uses it only in one place.
If it possible, please accept this change to avoid at(). I changed it to slice + reverse.
This change will help me to remove polyfill for Array.prototype.at

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.28%. Comparing base (882e75a) to head (14ca30d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4057      +/-   ##
==========================================
- Coverage   91.32%   91.28%   -0.04%     
==========================================
  Files         168      168              
  Lines       10684    10769      +85     
  Branches     3032     3063      +31     
==========================================
+ Hits         9757     9831      +74     
- Misses        926      937      +11     
  Partials        1        1              

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[yusukebe]

LGTM!

[yusukebe]

Hi @isnifer

Looks good. The client should support old browsers. Thank you for your contribution!