fix(nextjs-component): fix inability to set custom behavior for _next/data/*

[dphang]

This should fix: #682

Tests

Manually tested and verified that default values for _next/data/* can be overridden.

[codecov]

Codecov Report

Merging #684 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #684      +/-   ##
==========================================
+ Coverage   79.24%   79.25%   +0.01%     
==========================================
  Files          52       52              
  Lines        1614     1615       +1     
  Branches      344      344              
==========================================
+ Hits         1279     1280       +1     
  Misses        277      277              
  Partials       58       58              

Impacted Files	Coverage Δ
...rless-components/nextjs-component/src/component.ts	90.22% <100.00%> (+0.07%)	⬆️

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