fix: broaden peer dep to support React 18 and 19

[iamdarshshah]

^17.0.0 resolves to >=17 <18, blocking React 18/19 users at install time with ERESOLVE. The library's class component architecture is identical to v6, which works fine with React 19. Broadening to >=17.0.0 removes the unnecessary install-time restriction.

Fixes #419

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.33%. Comparing base (dcd8a31) to head (62b4fd5).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #420   +/-   ##
=======================================
  Coverage   79.33%   79.33%           
=======================================
  Files           2        2           
  Lines         150      150           
  Branches       56       56           
=======================================
  Hits          119      119           
  Misses         24       24           
  Partials        7        7           

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