Add usePagError hook tests

[myty]

Adds test for issue #22

• [x] Related GitHub issue(s) linked in PR description
• [x] Destination branch merged, built and tested with your changes
• [x] Code formatted and follows best practices and patterns
• [x] Code builds cleanly (no additional warnings or errors)
• [x] Manually tested
• [x] Automated tests are passing
• [x] No decreases in automated test coverage
• [ ] Documentation updated (readme, docs, comments, etc.)
• [ ] Localization: No hard-coded error messages in code files (minimally in string constants)

[codecov[bot]]

Codecov Report

Merging #62 (289807a) into main (b12574c) will increase coverage by 0.23%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #62      +/-   ##
==========================================
+ Coverage   94.62%   94.86%   +0.23%     
==========================================
  Files          16       17       +1     
  Lines         242      253      +11     
  Branches       27       28       +1     
==========================================
+ Hits          229      240      +11     
  Misses         12       12              
  Partials        1        1              

Impacted Files	Coverage Δ
src/hooks/use-page-errors.ts	100.00% <100.00%> (ø)

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[myty]

@brandongregoryscott I think I addressed all of your comments. Thanks!